Declercq

02852, 1957 LF, 1957LF, 1975 GB1, 1975GB1, 1975 HL, 1975HL, 1981 QU2, 1981QU2, 1981 TN, 1981TN, J57L00F, J75G01B, J75H00L, J81Q02U, J81T00N

All data for this body: [vot]

MPC data
Name (number) Declercq (2852)
a 2.78423
e 0.08738
i / sin(i) 1.7024 / 0.02971
q 2.54093
Q 3.02752
ω 256.3652
Node 110.0693
m 121.8231
n 0.2122
Epoch 2460800.5
nobs 4621
nopp 32
Years observed 1949-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent Astrid (1128)
 
ap 2.785
ep 0.048
sin(ip) 0.012
G 0.150
H 12.840
Mass
D 12.81 1.101
pV 0.070 0.0220
Value
Rotational Period 4.957
Period quality 2
Spectral Class C
Spectral Class Score 8.980
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1128 Astrid 0 Astrid Novakovic 2019EPSC...13.1671N HCM
1128 Astrid 515 Astrid -0.5700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7853 0.0482 0.0120 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.47 1.420 1.420 Usui 2011PASJ...63.1117U NEATM
12.82 2.560 2.560 Ali-Lagoa 2018A&A...612A..85A NEATM
13.25 3.080 3.080 Masiero 2020PSJ.....1....5M NEATM
14.40 4.420 4.420 Masiero 2021PSJ.....2..162M NEATM
14.83 7.140 7.140 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.051 0.0220 0.0380 Masiero 2021PSJ.....2..162M NEATM
0.080 0.1640 0.1640 Masiero 2012ApJ...759L...8M NEATM
0.090 0.0670 0.0670 Masiero 2020PSJ.....1....5M NEATM
0.094 0.0380 0.0380 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
12.84 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.95673 2 Sidereal Durech 2020A&A...643A..59D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C 0.830 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C P 0.800000 0.120000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
Ch Bus VIS Bus 2002Icar..158..146B SPEC