1999 DL4

1999DL4, 2001 QL54, 2001QL54, 33429, J99D04L, K01Q54L

All data for this body: [vot]

MPC data
Name (number) 1999 DL4 (33429)
a 3.20929
e 0.04434
i / sin(i) 10.8533 / 0.18829
q 3.06699
Q 3.35159
ω 182.7962
Node 355.4317
m 194.8206
n 0.1714
Epoch 2460800.5
nobs 3605
nopp 23
Years observed 1993-2025
rms 0.59
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.215
ep 0.048
sin(ip) 0.194
G 0.150
H 13.370
Mass
D 6.74 0.341
pV 0.170 0.0218
Value
Rotational Period 24.780
Period quality 2
Spectral Class S
Spectral Class Score 6.461
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.2148 0.0478 0.1936 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.74 0.341 0.341 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.170 0.0218 0.0218 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
13.37 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
24.783 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
LS 0.55 Bus VIS Carvano 2010A&A...510A..43C PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S S 0.2738 0.3700 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.4697 0.3700 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT