1987 UP2

1987UP2, 07870, 1950 RF, 1950RF, 1980 OK, 1980OK, 1987 WD1, 1987WD1, J50R00F, J80O00K, J87U02P, J87W01D

All data for this body: [vot]

MPC data
Name (number) 1987 UP2 (7870)
a 2.24125
e 0.27309
i / sin(i) 3.5044 / 0.06112
q 1.62918
Q 2.85331
ω 156.4442
Node 239.9763
m 59.3539
n 0.2937
Epoch 2460800.5
nobs 6739
nopp 25
Years observed 1950-2025
rms 0.52
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.239
ep 0.245
sin(ip) 0.046
G 0.150
H 13.960
Mass
D 4.56 0.339
pV 0.208 0.0333
Value
Rotational Period 12.000
Period quality 1
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2393 0.2450 0.0456 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.86 0.600 0.600 Nugent 2016AJ....152...63N NEATM
4.30 0.600 0.600 Ali-Lagoa 2017A&A...603A..55A NEATM
5.30 0.800 0.800 Ali-Lagoa 2017A&A...603A..55A NEATM
5.50 0.800 0.800 Ali-Lagoa 2017A&A...603A..55A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.180 0.0500 0.0500 Ali-Lagoa 2017A&A...603A..55A NEATM
0.190 0.0600 0.0600 Ali-Lagoa 2017A&A...603A..55A NEATM
0.270 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM
0.290 0.0900 0.0900 Ali-Lagoa 2017A&A...603A..55A 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
13.96 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
12.0 1 Synodic Behrend LCDB Lightcurve
6.15 1 Synodic Warner 2011MPBu...38...89W Lightcurve