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 5.17145
e 0.05858
i / sin(i) 22.2714 / 0.37900
q 4.86852
Q 5.47438
ω 11.2002
Node 86.4248
m 27.1058
n 0.0838
Epoch 2460800.5
nobs 4423
nopp 31
Years observed 1980-2025
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent
 
ap
ep
sin(ip)
G 0.150
H 9.040
Mass
D 78.45 0.393
pV 0.050 0.0028
Value
Rotational Period 12.580
Period quality 3
Spectral Class D
Spectral Class Score 45.739
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
9.04 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
12.58 3 Synodic French 2011MPBu...38..116F Lightcurve
12.58 3 Synodic Stephens 2016MPBu...43..323S Lightcurve
12.582 3 Synodic Mottola 2011AJ....141..170M Lightcurve
12.582 3 Synodic Stephens 2016MPBu...43...15S Lightcurve
12.58423 2 Sidereal Durech 2019A&A...631A...2D Model
12.599 3- Synodic Stephens 2023MPBu...50..157S Lightcurve
12.6 3- Synodic French 2011MPBu...38..116F Lightcurve
13.0 2 Synodic Behrend LCDB Lightcurve
9.969 Synodic McNeill 2021PSJ.....2....6M Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
D Bus VIS Lazzaro 2004Icar..172..179L SPEC
D 0.995 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
D D 0.4897 0.7720 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.5235 0.7720 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.9248 0.7720 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.9412 0.7720 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.9473 0.7720 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D P 0.590000 0.310000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
D DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
D Tholen VIS Lazzaro 2004Icar..172..179L SPEC
D 0.93 Bus VIS Carvano 2010A&A...510A..43C PHOT