Janina

00383, 1894 BC, 1894BC, 1925 QC, 1925QC, 1936 QQ1, 1936QQ1, 1936 RO, 1936RO, I94B00C, J25Q00C, J36Q01Q, J36R00O

All data for this body: [vot]

MPC data
Name (number) Janina (383)
a 3.13813
e 0.16869
i / sin(i) 2.6597 / 0.04640
q 2.60874
Q 3.66751
ω 324.8438
Node 92.7603
m 280.6420
n 0.1773
Epoch 2460800.5
nobs 9171
nopp 66
Years observed 1894-2025
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.134
ep 0.152
sin(ip) 0.025
G 0.150
H 10.060
Mass
D 42.28 0.295
pV 0.079 0.0043
Value
Rotational Period 6.420
Period quality 3
Spectral Class B
Spectral Class Score 65.697
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
656 Beagle 0 Beagle Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis -0.0200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1341 0.1525 0.0247 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
32.14 7.850 7.850 Nugent 2016AJ....152...63N NEATM
35.10 7.020 7.020 Ali-Lagoa 2018A&A...612A..85A NEATM
36.66 2.512 2.512 Ryan&Woodward 2010AJ....140..933R IRAS-STM
38.83 0.990 0.990 Usui 2011PASJ...63.1117U NEATM
40.01 0.540 0.540 Masiero 2014ApJ...791..121M NEATM
42.30 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
43.48 0.470 0.470 Masiero 2012ApJ...759L...8M NEATM
43.62 8.720 8.720 Ali-Lagoa 2018A&A...612A..85A NEATM
44.64 0.739 0.739 Masiero 2011ApJ...741...68M NEATM
45.52 1.800 1.800 Tedesco 2002AJ....123.1056T STM
59.65 3.181 3.181 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.055 0.0061 0.0061 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.093 0.0080 0.0080 Tedesco 2002AJ....123.1056T STM
0.096 0.0127 0.0127 Masiero 2011ApJ...741...68M NEATM
0.101 0.0200 0.0200 Masiero 2012ApJ...759L...8M NEATM
0.116 0.0460 0.0460 Ali-Lagoa 2018A&A...612A..85A NEATM
0.130 0.0300 0.0300 Masiero 2014ApJ...791..121M NEATM
0.130 0.0900 0.0900 Nugent 2016AJ....152...63N NEATM
0.148 0.0213 0.0213 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.179 0.0720 0.0720 Ali-Lagoa 2018A&A...612A..85A NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.06 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.636 2 Synodic Clark 2006MPBu...33...53C Lightcurve
6.4 2+ Synodic Tedesco LCDB Lightcurve
6.426 3 Synodic Dose LCDB Lightcurve
6.429 2- Synodic Erasmus 2020ApJS..247...13E Lightcurve
6.42943 2 Sidereal Durech 2020A&A...643A..59D Model
6.4298 3- Synodic Pilcher 2021MPBu...48....5P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B Bus-DeMeo NIR Marsset 2016A&A...586A..15M SPEC
B Bus-DeMeo VISNIR Hasegawa 2024AJ....167..224H SPEC
B Bus VIS Bus 2002Icar..158..146B SPEC
B 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
B B 0.6280 0.2080 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.9432 0.2080 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B C DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT
B C 0.610000 0.390000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
C Bus-DeMeo NIR de Leon 2012Icar..218..196D SPEC
C Bus-DeMeo VISNIR Clark 2010JGRE..115.6005C SPEC
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.62 Bus VIS Carvano 2010A&A...510A..43C PHOT
C M 0.440000 0.440000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC