Chapman

02409, 1931 PA, 1931PA, 1938 TA, 1938TA, 1975 JO, 1975JO, 1976 YR7, 1976YR7, 1977 AU2, 1977AU2, 1979 UG, 1979UG, J31P00A, J38T00A, J75J00O, J76Y07R, J77A02U, J79U00G

All data for this body: [vot]

MPC data
Name (number) Chapman (2409)
a 2.26551
e 0.19165
i / sin(i) 3.5147 / 0.06130
q 1.83133
Q 2.69968
ω 208.0189
Node 140.6806
m 147.7324
n 0.2890
Epoch 2460800.5
nobs 7053
nopp 33
Years observed 1971-2025
rms 0.56
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.266
ep 0.144
sin(ip) 0.054
G 0.150
H 12.900
Mass
D 8.42 0.134
pV 0.227 0.0435
Value
Rotational Period 3.153
Period quality 3
Spectral Class S
Spectral Class Score 12.000
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
44 Nysa 405 Nysa-Polana -4.8600 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2661 0.1444 0.0542 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.51 0.480 0.480 Usui 2011PASJ...63.1117U NEATM
5.99 1.200 1.200 Ali-Lagoa 2018A&A...612A..85A NEATM
8.70 0.140 0.140 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.213 0.0450 0.0450 Masiero 2012ApJ...759L...8M NEATM
0.429 0.1720 0.1720 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
12.90 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.1531 3 Synodic Pravec LCDB Lightcurve
3.1534 3 Synodic Marchini 2021MPBu...48....1M Lightcurve
3.1535 3 Synodic Behrend LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
A 0.598 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S Bus VIS Bus 2002Icar..158..146B SPEC
S 1.000000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
S S DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT