1988 BK4

1988BK4, 05469, 1977 DK, 1977DK, J77D00K, J88B04K

All data for this body: [vot]

MPC data
Name (number) 1988 BK4 (5469)
a 3.11732
e 0.15057
i / sin(i) 19.1937 / 0.32876
q 2.64793
Q 3.58671
ω 291.4863
Node 143.6783
m 317.5499
n 0.1791
Epoch 2460800.5
nobs 5294
nopp 28
Years observed 1977-2025
rms 0.51
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.121
ep 0.129
sin(ip) 0.320
G 0.150
H 13.490
Mass
D 14.77 0.116
pV 0.039 0.0065
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 2.124
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1213 0.1292 0.3200 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.27 5.120 5.120 Masiero 2021PSJ.....2..162M NEATM
14.35 2.890 2.890 Masiero 2021PSJ.....2..162M NEATM
14.77 0.116 0.116 Masiero 2011ApJ...741...68M NEATM
15.32 4.140 4.140 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.030 0.0300 0.0300 Nugent 2016AJ....152...63N NEATM
0.040 0.0070 0.0070 Masiero 2011ApJ...741...68M NEATM
0.041 0.0200 0.0390 Masiero 2021PSJ.....2..162M NEATM
0.042 0.0230 0.0490 Masiero 2021PSJ.....2..162M 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
13.49 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 0.354 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT