2001 BW7

2001BW7, 1999 SY18, 1999SY18, 42121, J99S18Y, K01B07W

All data for this body: [vot]

MPC data
Name (number) 2001 BW7 (42121)
a 2.43924
e 0.12864
i / sin(i) 8.2537 / 0.14356
q 2.12545
Q 2.75303
ω 222.2688
Node 91.7653
m 299.3012
n 0.2587
Epoch 2460800.5
nobs 2036
nopp 21
Years observed 1998-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.440
ep 0.098
sin(ip) 0.127
G 0.150
H 15.340
Mass
D 2.48 0.492
pV 0.288 0.1166
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 4.072
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4398 0.0984 0.1267 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.48 0.492 0.492 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.288 0.1166 0.1166 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
15.34 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 0.512 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C C None None Movis NIR Popescu 2018A&A...617A..12P PHOT