Askalaphus

04946, 1988 BW1, 1988BW1, J88B01W

All data for this body: [vot]

MPC data
Name (number) Askalaphus (4946)
a 5.31613
e 0.05000
i / sin(i) 21.8542 / 0.37225
q 5.05032
Q 5.58194
ω 204.4729
Node 59.0364
m 230.6329
n 0.0804
Epoch 2460800.5
nobs 4022
nopp 30
Years observed 1950-2025
rms 0.64
Best values
[raw, vot]

Value Standard error
Parent
 
ap
ep
sin(ip)
G 0.150
H 10.160
Mass
D 48.43 0.383
pV 0.054 0.0052
Value
Rotational Period 22.730
Period quality 3
Spectral Class D
Spectral Class Score 14.527
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
47.31 0.890 0.890 Grav 2011ApJ...742...40G NEATM
48.21 0.430 0.430 Grav 2012ApJ...759...49G NEATM
61.93 12.390 12.390 Ali-Lagoa 2018A&A...612A..85A NEATM
66.10 2.730 2.730 Usui 2011PASJ...63.1117U NEATM
75.27 15.050 15.050 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.026 0.0100 0.0100 Ali-Lagoa 2018A&A...612A..85A NEATM
0.038 0.0150 0.0150 Ali-Lagoa 2018A&A...612A..85A NEATM
0.069 0.0080 0.0080 Grav 2012ApJ...759...49G NEATM
0.072 0.0120 0.0120 Grav 2011ApJ...742...40G 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
10.16 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
22.731 3 Synodic Mottola 2011AJ....141..170M Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
D DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
D 0.64 Bus VIS Carvano 2010A&A...510A..43C PHOT
D D 0.8976 0.9430 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.9769 0.9430 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT