Sirona

00116, 1871 RA, 1871RA, 1954 UC3, 1954UC3, 1998 EK13, 1998EK13, 1998 ES21, 1998ES21, I71R00A, J54U03C, J98E13K, J98E21S

All data for this body: [vot]

MPC data
Name (number) Sirona (116)
a 2.76924
e 0.13831
i / sin(i) 3.5614 / 0.06212
q 2.38622
Q 3.15225
ω 93.9077
Node 63.6804
m 333.7419
n 0.2139
Epoch 2460800.5
nobs 4246
nopp 74
Years observed 1872-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.768
ep 0.175
sin(ip) 0.048
G 0.150
H 7.780
Mass
D 78.04 1.135
pV 0.223 0.0200
Value
Rotational Period 12.020
Period quality 3
Spectral Class S
Spectral Class Score 39.042
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7684 0.1751 0.0479 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
71.70 5.800 5.800 Tedesco 2002AJ....123.1056T STM
74.58 7.460 7.460 Ali-Lagoa 2018A&A...612A..85A NEATM
75.95 6.952 6.952 Ryan&Woodward 2010AJ....140..933R IRAS-STM
77.36 15.470 15.470 Ali-Lagoa 2018A&A...612A..85A NEATM
78.28 1.210 1.210 Usui 2011PASJ...63.1117U NEATM
84.23 6.884 6.884 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.188 0.0316 0.0316 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.234 0.0425 0.0425 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.237 0.0950 0.0950 Ali-Lagoa 2018A&A...612A..85A NEATM
0.255 0.0510 0.0510 Ali-Lagoa 2018A&A...612A..85A NEATM
0.256 0.0470 0.0470 Tedesco 2002AJ....123.1056T STM
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
7.78 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
12.028 3 Synodic Zeigler 1985Icar...62..512Z Lightcurve
12.02882 2+ Synodic Behrend LCDB Lightcurve
12.032 2 Sidereal Durech 2023A&A...675A..24D Model
12.03251 2 Sidereal Durech 2016A&A...587A..48D Model
13.7 0 Synodic Harris 1980Icar...43...20H Lightcurve
19.3 0 Synodic Bailey 1913AnHar..72..165B Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S Bus-DeMeo VISNIR Hasegawa 2024AJ....167..224H SPEC
S 0.697 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 0.990000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
S 0.990000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
Sk Bus VIS Bus 2002Icar..158..146B SPEC
Sp Howell VISNIR Howell 1994JGR....9910847H PHOT