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XO-2 N b

View target in exoplanet catalog
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Total Reductions to Date: 22

Date Processed: 09/18/2023 at 00:07:19 (PDT)

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) 2.615859709447949 8.659033966289543e-08
Ephemeris (BJD_TDB) 2460051.745595148 0.0001485848942473664
Time saved (hours) -  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 117.0267691 decimal
DEC 50.2251472 decimal
Host Star Metallicity 0.43 0.05 Bonomo et al. 2017
Host Star log(g) 4.32 0.1 Log10(cgs) ExoFOP-TESS TOI
Host Star Radius [R_Sun] 1.08 0.08 Sol ExoFOP-TESS TOI
Host Star Effective Temperature [K] 5340.0 80.0 K Kokori et al. 2022
a/Rs 7.986 0.074 Zellem et al. 2015
eccentricity 0.006 0.038 Bonomo et al. 2017
inclination [degrees] 87.96 0.42 deg Bonomo et al. 2017
omega [degrees] 261.0 11.0 deg Knutson et al. 2014
orbital period [days] 2.61585906 2.5e-07 day Ivshina & Winn 2022
Rp 13.13 0.94 R_Earth ExoFOP-TESS TOI
Rp/Rs 0.1156 0 ExoFOP-TESS TOI
ephemeris [JD] 2456737.45107 0.0002 BJD-TDB Ivshina & Winn 2022

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2454466.88467 0.00012 HJD Fernandez et al. 2009
2454508.73829 0.00014 HJD Crouzet et al. 2012
2455139.16092 0.00013 BJD-TDB Baluev et al. 2015
2455565.54648 5.4e-05 BJD-TDB Bonomo et al. 2017, Damasso et al. 2015
2456737.45107 0.0002 BJD-TDB Ivshina & Winn 2022
2456923.17711 0.00015 BJD-TDB Kokori et al. 2022
2459957.574412 0.000204 BJD ExoFOP-TESS TOI

Observations

Light curve chart for 0000570
Parameter Value Uncertainty
Am1 0.978 0.004
Am2 0.021 0.012
a/Rs 8.04 0.15
Rp/Rs 0.0998 0.0033
ephemeris [JD] 2458908.6156 0.001
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 1.8814850390311888
u1 -3.235061950537781
u2 3.5971567904126998
u3 -1.2435798253042942
duration 0.111 0.0022
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
CV Clear (unfiltered) reduced to V sequence 350.0 nm 850.0 nm
Organization Observer Code Secondary Observers
AAVSO MWAA (collaborate/publish)
Light curve chart for 0002165
Parameter Value Uncertainty
Am1 1.097 0.014
Am2 -0.085 0.016
a/Rs 8.26 0.21
Rp/Rs 0.142 0.019
ephemeris [JD] 2459907.866 0.0049
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.468907202079324
u1 -4.286163656401252
u2 4.282499491851441
u3 -1.465242973715298
duration 0.1124 0.0036
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
AAVSO LPAC (collaborate/publish)
Light curve chart for 0002474
Parameter Value Uncertainty
Am1 1.034 0.0034
Am2 -0.0311 0.0065
a/Rs 8.1 0.18
Rp/Rs 0.1126 0.0023
ephemeris [JD] 2459965.4192 0.0013
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 1.8817430499487782
u1 -3.23586611145645
u2 3.598373166879669
u3 -1.2442500517520587
duration 0.1114 0.0028
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
CV Clear (unfiltered) reduced to V sequence 350.0 nm 850.0 nm
Organization Observer Code Secondary Observers
AAVSO HMAK (collaborate/publish)
Light curve chart for 0003306
Parameter Value Uncertainty
Am1 1.0087 0.0054
Am2 -0.0053 0.0014
a/Rs 7.62 0.14
Rp/Rs 0.1042 0.0039
ephemeris [JD] 2460051.7463 0.0018
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 1.880745580981322
u1 -3.231241163322678
u2 3.591525699601176
u3 -1.2410300637419165
duration 0.118 0.0024
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
CV MObs CV 350.0 nm 850.0 nm
Organization Observer Code Secondary Observers
AAVSO MBEB (collaborate/publish)
Light curve chart for 520f83fa882f47a4cb53939bef9b17c3
Parameter Value Uncertainty
Am1 0.9997 0.003
Am2 0
a/Rs 7.99 0.16
Rp/Rs 0.0975 0.0025
ephemeris [JD] 2458866.7615 0.0011
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.4689326804556844
u1 -4.286029760513515
u2 4.282200600870293
u3 -1.4651034570026997
duration 0.1115 0.0025
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 851b207a4c1b1377f0ce24285c46339c
Parameter Value Uncertainty
Am1 1.0006 0.0024
Am2 0
a/Rs 8.01 0.16
Rp/Rs 0.0975 0.0022
ephemeris [JD] 2458845.8341 0.0011
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.468516817458904
u1 -4.285401356919738
u2 4.282005892160886
u3 -1.4651212888931924
duration 0.111 0.0024
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 9ffdadcb77eaac2835292e94d31a3c62
Parameter Value Uncertainty
Am1 1.0001 0.0022
Am2 0
a/Rs 7.96 0.15
Rp/Rs 0.093 0.002
ephemeris [JD] 2459588.7375 0.001
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.4690999822598245
u1 -4.287231434036325
u2 4.284015132012574
u3 -1.4658836163992737
duration 0.1114 0.0023
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for aa77e654b5acf5d63b630356cb3c0cae
Parameter Value Uncertainty
Am1 0.9996 0.0025
Am2 0
a/Rs 7.82 0.16
Rp/Rs 0.0929 0.0022
ephemeris [JD] 2459586.1219 0.0012
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.4688301686528917
u1 -4.286052533922165
u2 4.2824145729431065
u3 -1.4651921438608828
duration 0.1135 0.0026
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for c4dc3c1d8c07dec4d53bb37390effc7a
Parameter Value Uncertainty
Am1 1.0004 0.0031
Am2 0
a/Rs 8.24 0.14
Rp/Rs 0.0977 0.0026
ephemeris [JD] 2458851.0672 0.0012
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.4698235336509695
u1 -4.2889015529835115
u2 4.285527253242567
u3 -1.4664491700506916
duration 0.1077 0.002
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for d0e060769d1461705a11c127d7882363
Parameter Value Uncertainty
Am1 1.0011 0.0038
Am2 0
a/Rs 7.99 0.19
Rp/Rs 0.0968 0.003
ephemeris [JD] 2458843.2181 0.0016
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.46904405274263
u1 -4.287349327920576
u2 4.284386693951876
u3 -1.4660813549315934
duration 0.111 0.0029
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 3869ba247d61acbf064d69cfc8c1d4a4
Parameter Value Uncertainty
Am1 1.0003 0.002
Am2 0
a/Rs 7.88 0.14
Rp/Rs 0.0947 0.0019
ephemeris [JD] 2459591.35421 0.00099
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.468869855305938
u1 -4.28711879100342
u2 4.284468914359063
u3 -1.4662199148180184
duration 0.1127 0.0022
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 98ad5c1da37e715eb71a814bd699b7c9
Parameter Value Uncertainty
Am1 0.9995 0.0039
Am2 0
a/Rs 8.26 0.17
Rp/Rs 0.0963 0.003
ephemeris [JD] 2458853.6809 0.0018
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.46858019212709
u1 -4.285811920176363
u2 4.282548828503588
u3 -1.4653170366393646
duration 0.1073 0.0024
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for acef8416a41d2d49e40e7433bfb6c6a7
Parameter Value Uncertainty
Am1 1.0056 0.0026
Am2 0
a/Rs 8.06 0.17
Rp/Rs 0.0931 0.0024
ephemeris [JD] 2459596.5855 0.0012
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.468556992782567
u1 -4.285064962735737
u2 4.281205930065454
u3 -1.464697896317345
duration 0.1098 0.0026
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 4926fd7174e089ae59508782430618a4
Parameter Value Uncertainty
Am1 1.0034 0.0028
Am2 0
a/Rs 7.92 0.16
Rp/Rs 0.0951 0.0023
ephemeris [JD] 2459580.8913 0.0012
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.469108407837359
u1 -4.287475115577721
u2 4.28447711070475
u3 -1.4661103391207035
duration 0.1123 0.0024
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for e28dcccbe3d78082e9360bcc88be04eb
Parameter Value Uncertainty
Am1 0.9999 0.0018
Am2 0
a/Rs 7.94 0.14
Rp/Rs 0.0926 0.0019
ephemeris [JD] 2459583.5066 0.00095
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.4686435923428616
u1 -4.285781288301874
u2 4.282262286352818
u3 -1.4651245265831245
duration 0.1119 0.0022
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for b860ee5b00c2de77bb232db6f1774889
Parameter Value Uncertainty
Am1 1.0017 0.0032
Am2 0
a/Rs 8.0 0.17
Rp/Rs 0.0968 0.0026
ephemeris [JD] 2458858.912 0.0013
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.4683292382947273
u1 -4.284426365938804
u2 4.280493323484125
u3 -1.4643961320557266
duration 0.1114 0.0026
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 2b19f46d6fb065d3b1dba5dd03e729cc
Parameter Value Uncertainty
Am1 1.0005 0.0018
Am2 0
a/Rs 7.95 0.13
Rp/Rs 0.095 0.0019
ephemeris [JD] 2459604.43272 0.00092
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.468439880872626
u1 -4.285756864176201
u2 4.282777822818963
u3 -1.4654607756970255
duration 0.1119 0.0021
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for f9cef661ab993543e0870149ceb53846
Parameter Value Uncertainty
Am1 1.0003 0.002
Am2 0
a/Rs 7.98 0.14
Rp/Rs 0.094 0.002
ephemeris [JD] 2459601.81744 0.00094
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.468444820613255
u1 -4.284459269534604
u2 4.280343769433787
u3 -1.4643292567303452
duration 0.1114 0.0021
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 790ce73601f6a8f2dc4b11d9d67ed04b
Parameter Value Uncertainty
Am1 0.9997 0.0041
Am2 0
a/Rs 8.35 0.17
Rp/Rs 0.0945 0.0033
ephemeris [JD] 2458848.4515 0.002
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.468269946594047
u1 -4.2842194968951475
u2 4.280341216393552
u3 -1.4643916023103971
duration 0.1061 0.0024
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 683b42744df83d240638ea26775412b5
Parameter Value Uncertainty
Am1 1.0004 0.0032
Am2 0
a/Rs 7.91 0.17
Rp/Rs 0.0947 0.0025
ephemeris [JD] 2458864.1457 0.0013
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.4687646306611395
u1 -4.286583391196731
u2 4.28353952945236
u3 -1.4657207050870555
duration 0.1123 0.0027
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for c8204725207d003a41a793bcee0ae74c
Parameter Value Uncertainty
Am1 0.9998 0.0029
Am2 0
a/Rs 8.2 0.15
Rp/Rs 0.0956 0.0023
ephemeris [JD] 2458861.5292 0.0012
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.4686101117139976
u1 -4.286697067586955
u2 4.284100387294608
u3 -1.4660133675835811
duration 0.1082 0.0022
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for fd0ad627ebe11a582f27097da12b9281
Parameter Value Uncertainty
Am1 1.0 0.0018
Am2 0
a/Rs 7.84 0.14
Rp/Rs 0.0935 0.0019
ephemeris [JD] 2459599.2012 0.0011
eccentricity 0.006
inclination [degrees] 87.96
omega [degrees] 261.0
orbital period [days] 2.61585906
u0 2.4686033511398007
u1 -4.2858571066737445
u2 4.282570508104605
u3 -1.4653166887553875
duration 0.1131 0.0021
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)

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