1994 BL4

1994BL4, 1977 DW6, 1977DW6, 1990 EK1, 1990EK1, 29312, J77D06W, J90E01K, J94B04L

All data for this body: [vot]

MPC data
Name (number) 1994 BL4 (29312)
a 2.64039
e 0.20983
i / sin(i) 11.9384 / 0.20686
q 2.08636
Q 3.19442
ω 132.2967
Node 327.9142
m 120.9210
n 0.2297
Epoch 2460800.5
nobs 1498
nopp 18
Years observed 1977-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.638
ep 0.231
sin(ip) 0.217
G 0.150
H 15.120
Mass
D 3.92 1.090
pV 0.090 0.0700
Value
Rotational Period
Period quality None
Spectral Class B
Spectral Class Score 11.281
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6384 0.2306 0.2172 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.92 1.090 1.090 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.090 0.0700 0.0700 Nugent 2016AJ....152...63N 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
15.12 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
B B 0.3491 0.3620 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.4592 0.3620 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.4598 0.3620 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.6121 0.3620 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.55 Bus VIS Carvano 2010A&A...510A..43C PHOT
C 0.557 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C B 0.2456 0.3620 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C B 0.2606 0.3620 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT