Gerda

00122, 1872 OA, 1872OA, 1948 TQ1, 1948TQ1, I72O00A, J48T01Q

All data for this body: [vot]

MPC data
Name (number) Gerda (122)
a 3.22751
e 0.02331
i / sin(i) 1.6429 / 0.02867
q 3.15227
Q 3.30276
ω 319.9440
Node 177.9595
m 349.3771
n 0.1700
Epoch 2460800.5
nobs 4877
nopp 79
Years observed 1872-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.220
ep 0.058
sin(ip) 0.033
G 0.150
H 7.670
Mass
D 80.60 0.562
pV 0.183 0.0059
Value
Rotational Period 10.680
Period quality 3
Spectral Class S
Spectral Class Score 35.924
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.2200 0.0579 0.0327 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
65.05 3.510 3.510 Masiero 2012ApJ...759L...8M NEATM
70.68 0.910 0.910 Masiero 2014ApJ...791..121M NEATM
81.69 1.900 1.900 Tedesco 2002AJ....123.1056T STM
83.37 8.340 8.340 Ali-Lagoa 2018A&A...612A..85A NEATM
84.51 16.900 16.900 Ali-Lagoa 2018A&A...612A..85A NEATM
85.17 2.507 2.507 Ryan&Woodward 2010AJ....140..933R IRAS-STM
85.41 1.230 1.230 Usui 2011PASJ...63.1117U NEATM
91.22 4.668 4.668 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
92.38 1.177 1.177 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.148 0.0280 0.0280 Masiero 2011ApJ...741...68M NEATM
0.152 0.0162 0.0162 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.173 0.0104 0.0104 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.188 0.0090 0.0090 Tedesco 2002AJ....123.1056T STM
0.230 0.0920 0.0920 Ali-Lagoa 2018A&A...612A..85A NEATM
0.236 0.0470 0.0470 Ali-Lagoa 2018A&A...612A..85A NEATM
0.250 0.0400 0.0400 Masiero 2014ApJ...791..121M NEATM
0.297 0.0320 0.0320 Masiero 2012ApJ...759L...8M 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
7.67 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
10.332 2 Synodic Di Martino 1994Icar..107..269D Lightcurve
10.61 2 Synodic Behrend LCDB Lightcurve
10.67 2 Synodic Behrend LCDB Lightcurve
10.685 3 Synodic Robinson LCDB Lightcurve
10.687 2 Synodic Buchheim 2007MPBu...34...13B Lightcurve
10.6872 3- Synodic Devogele 2017A&A...607A.119D Lightcurve
10.68724 2 Sidereal Hanus 2016A&A...586A.108H Model
10.68724 2 Sidereal Martikainen 2021A&A...649A..98M Model
10.6879 2- Synodic Behrend LCDB Lightcurve
10.688 Synodic Shevchenko 2008LPICo1405.8106S Lightcurve
10.71 3- Synodic Pilcher 2009MPBu...36..133P Lightcurve
6.0 1 Synodic Behrend LCDB Lightcurve
8.903 2 Synodic Gil 1993RMxAA..25...75G Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
L Bus VIS Bus 2002Icar..158..146B SPEC
S Bus-DeMeo VISNIR Devogele 2018Icar..304...31D SPEC
S Tholen VIS Clark 1995Icar..113..387C PHOT
S 0.990000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
S 0.999 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT