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3518 Florena (1977 QC4)
Classification: Main-belt Asteroid          SPK-ID: 2003518
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1785239294621599 2.9099e-08  
a 2.674337028002206 1.1233e-08 au
q 2.196903873057098 8.0263e-08 au
i 13.91442966231423 3.2927e-06 deg
node 147.8444502905164 1.5073e-05 deg
peri 165.8182252805368 1.8556e-05 deg
M 282.5980808954864 1.2235e-05 deg
tp 2459343.956595779453
(2021-May-09.45659578)
5.4943e-05 TDB
period 1597.43293074749
4.37
1.0064e-05
2.755e-08
d
yr
n .2253615742299394 1.4198e-09 deg/d
Q 3.151770182947314 1.3238e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2748  
   data-arc span      25671 days (70.28 yr)  
   first obs. used      1950-04-22  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44137  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:04:37  

Additional Information
 Earth MOID = 1.18606 au 
 Jupiter MOID = 2.18882 au 
 T_jup = 3.315 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.4   n/a MPO384783  
diameter diameter 8.631 km 0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.2269 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2016) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.313   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3518 Florena (1977 QC4)          Discovered 1977-Aug-18 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1977 QC4 = 1982 UD3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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