Caltech

02906, 1957 KJ, 1957KJ, 1957 MA, 1957MA, 1974 LC, 1974LC, 1976 YS2, 1976YS2, 1983 AE2, 1983AE2, 1983 CD, 1983CD, J57K00J, J57M00A, J74L00C, J76Y02S, J83A02E, J83C00D

All data for this body: [vot]

MPC data
Name (number) Caltech (2906)
a 3.16869
e 0.10338
i / sin(i) 30.6772 / 0.51020
q 2.84111
Q 3.49628
ω 297.4391
Node 84.3774
m 272.1187
n 0.1747
Epoch 2460800.5
nobs 11768
nopp 31
Years observed 1957-2025
rms 0.38
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.163
ep 0.161
sin(ip) 0.491
G 0.150
H 10.500
Mass
D 59.43 0.462
pV 0.050 0.0026
Value
Rotational Period 12.993
Period quality 2+
Spectral Class C
Spectral Class Score 11.632
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1629 0.1609 0.4915 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
48.53 2.749 2.749 Ryan&Woodward 2010AJ....140..933R IRAS-STM
52.49 13.110 13.110 Nugent 2016AJ....152...63N NEATM
53.09 5.310 5.310 Ali-Lagoa 2018A&A...612A..85A NEATM
57.98 2.300 2.300 Tedesco 2002AJ....123.1056T STM
58.68 0.660 0.660 Masiero 2012ApJ...759L...8M NEATM
61.07 0.720 0.720 Usui 2011PASJ...63.1117U NEATM
63.02 4.423 4.423 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
66.22 6.620 6.620 Ali-Lagoa 2018A&A...612A..85A NEATM
68.54 6.850 6.850 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.036 0.0070 0.0070 Ali-Lagoa 2018A&A...612A..85A NEATM
0.038 0.0080 0.0080 Ali-Lagoa 2018A&A...612A..85A NEATM
0.046 0.0073 0.0073 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.051 0.0120 0.0120 Masiero 2012ApJ...759L...8M NEATM
0.053 0.0040 0.0040 Tedesco 2002AJ....123.1056T STM
0.059 0.0120 0.0120 Ali-Lagoa 2018A&A...612A..85A NEATM
0.060 0.0400 0.0400 Nugent 2016AJ....152...63N NEATM
0.077 0.0092 0.0092 Ryan&Woodward 2010AJ....140..933R IRAS-STM
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
10.50 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
12.99 2- Synodic Behrend LCDB Lightcurve
12.9937 2 Synodic Behrend LCDB Lightcurve
12.9937 2+ Synodic Behrend LCDB Lightcurve
12.99432 2 Sidereal Durech 2020A&A...643A..59D Model
12.999 2 Synodic Waszczak 2015AJ....150...75W 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 VIS Lazzaro 2004Icar..172..179L SPEC
C Tholen VIS Lazzaro 2004Icar..172..179L SPEC
C 0.772 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C C DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT
P Barucci-Tholen VIS Licandro 2008A&A...481..861L SPEC
P D 0.830000 0.130000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
S P 0.400000 0.350000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
Xc Bus VIS Bus 2002Icar..158..146B SPEC