1991 BP2

1991BP2, 1991 BH, 1991BH, 1999 NR21, 1999NR21, 37586, J91B00H, J91B02P, J99N21R

All data for this body: [vot]

MPC data
Name (number) 1991 BP2 (37586)
a 2.32697
e 0.20380
i / sin(i) 22.2251 / 0.37825
q 1.85274
Q 2.80120
ω 215.0965
Node 303.7654
m 211.8723
n 0.2777
Epoch 2460800.5
nobs 3159
nopp 20
Years observed 1991-2025
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent Phocaea (25)
 
ap 2.327
ep 0.218
sin(ip) 0.381
G 0.150
H 13.530
Mass
D 5.03 0.185
pV 0.277 0.0375
Value
Rotational Period 887.000
Period quality 2+
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
25 Phocaea 701 Phocaea -0.8700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
25 Phocaea 0 Phocaea Novakovic 2019EPSC...13.1671N HCM
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3274 0.2176 0.3809 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.01 0.189 0.189 Masiero 2011ApJ...741...68M NEATM
5.59 0.930 0.930 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.200 0.0700 0.0700 Nugent 2016AJ....152...63N NEATM
0.308 0.0444 0.0444 Masiero 2011ApJ...741...68M 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
13.53 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
50.558 2 Sidereal Durech 2020A&A...643A..59D Model
887.0 2+ Synodic Oey 2019MPBu...46..119O Lightcurve
900.0 2 Synodic Pravec LCDB Lightcurve