Dracius

04489, 1980 KA1, 1980KA1, 1988 AK, 1988AK, 1989 AQ1, 1989AQ1, J80K01A, J88A00K, J89A01Q

All data for this body: [vot]

MPC data
Name (number) Dracius (4489)
a 5.18815
e 0.06154
i / sin(i) 22.2520 / 0.37868
q 4.86888
Q 5.50743
ω 10.0845
Node 86.4223
m 337.9121
n 0.0834
Epoch 2460200.5
nobs 3256
nopp 30
Years observed 1980-2023
rms 0.49
Best values
[raw, vot]

Value Standard error
Parent
 
ap
ep
sin(ip)
Value Standard error
G 0.150
H 9.140
Mass
D 78.45 0.393
pV 0.050 0.0028
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
100.32 20.060 20.060 Ali-Lagoa 2018A&A...612A..85A NEATM
102.98 7.185 7.185 Ryan&Woodward 2010AJ....140..933R IRAS-STM
111.15 7.355 7.355 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
111.40 2.800 2.800 Fernandez 2003AJ....126.1563F RADIOMETRY_STM
76.60 0.410 0.410 Grav 2012ApJ...759...49G NEATM
92.44 18.490 18.490 Ali-Lagoa 2018A&A...612A..85A NEATM
92.93 7.400 7.400 Tedesco 2002AJ....123.1056T STM
93.80 2.400 2.400 Fernandez 2003AJ....126.1563F RADIOMETRY_STM
95.02 2.470 2.470 Usui 2011PASJ...63.1117U NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.036 0.0049 0.0049 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.042 0.0058 0.0058 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.044 0.0180 0.0180 Ali-Lagoa 2018A&A...612A..85A NEATM
0.051 0.0090 0.0090 Tedesco 2002AJ....123.1056T STM
0.052 0.0210 0.0210 Ali-Lagoa 2018A&A...612A..85A NEATM
0.069 0.0050 0.0050 Grav 2012ApJ...759...49G 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
9.14 MPC-2023-12-04 MPC-2023-12-04 Phot