1999 BB21

1999BB21, 1984 WS3, 1984WS3, 2001 QY324, 2001QY324, A1591, J84W03S, J99B21B, K01QW4Y

All data for this body: [vot]

MPC data
Name (number) 1999 BB21 (101591)
a 2.28527
e 0.13969
i / sin(i) 5.3618 / 0.09345
q 1.96604
Q 2.60451
ω 127.2952
Node 295.6026
m 258.4361
n 0.2853
Epoch 2460800.5
nobs 1104
nopp 17
Years observed 1984-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent Flora (8)
 
ap 2.285
ep 0.144
sin(ip) 0.103
G 0.150
H 16.290
Mass
D 2.31 0.407
pV 0.142 0.0447
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 5.550
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
8 Flora 402 Flora 0.2900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
298 Baptistina 403 Baptistina 0.5800 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2850 0.1442 0.1032 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.20 0.751 0.751 Masiero 2011ApJ...741...68M NEATM
2.35 0.484 0.484 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.140 0.0480 0.0480 Masiero 2011ApJ...741...68M NEATM
0.159 0.1226 0.1226 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
16.29 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C 0.925 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
X X 0.1150 0.3580 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.4081 0.3580 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT