Ilona

01182, 1915 RD, 1915RD, 1927 EA, 1927EA, J15R00D, J27E00A

All data for this body: [vot]

MPC data
Name (number) Ilona (1182)
a 2.25980
e 0.11758
i / sin(i) 9.3922 / 0.16319
q 1.99408
Q 2.52552
ω 63.2777
Node 336.2646
m 60.2513
n 0.2901
Epoch 2460800.5
nobs 12615
nopp 44
Years observed 1927-2025
rms 0.41
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.260
ep 0.109
sin(ip) 0.163
G 0.150
H 11.750
Mass
D 13.55 0.069
pV 0.227 0.0110
Value
Rotational Period 29.855
Period quality 3
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2596 0.1087 0.1627 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.02 0.320 0.320 Masiero 2014ApJ...791..121M NEATM
13.29 2.480 2.480 Nugent 2016AJ....152...63N NEATM
13.45 0.074 0.074 Masiero 2011ApJ...741...68M NEATM
14.16 0.260 0.260 Masiero 2012ApJ...759L...8M NEATM
14.26 0.800 0.800 Tedesco 2002AJ....123.1056T STM
15.90 1.372 1.372 Ryan&Woodward 2010AJ....140..933R IRAS-STM
17.73 1.770 1.770 Ali-Lagoa 2018A&A...612A..85A NEATM
17.88 0.620 0.620 Usui 2011PASJ...63.1117U NEATM
19.20 3.433 3.433 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.158 0.0546 0.0546 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.159 0.0320 0.0320 Ali-Lagoa 2018A&A...612A..85A NEATM
0.215 0.0371 0.0371 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.220 0.1100 0.1100 Nugent 2016AJ....152...63N NEATM
0.221 0.0160 0.0160 Masiero 2012ApJ...759L...8M NEATM
0.262 0.0300 0.0300 Tedesco 2002AJ....123.1056T STM
0.296 0.0367 0.0367 Masiero 2011ApJ...741...68M NEATM
0.310 0.0500 0.0500 Masiero 2014ApJ...791..121M 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
11.75 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
14.938 2 Synodic Behrend LCDB Lightcurve
29.8 2 Synodic LeCrone 2005MPBu...32...46L Lightcurve
29.853 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
29.8553 3 Synodic Polakis 2018MPBu...45..112P Lightcurve
29.8754 2 Sidereal Durech 2018A&A...617A..57D Model
29.8758 2 Synodic Pal 2020ApJS..247...26P Lightcurve