In August 2016, a rotational lightcurve of Ra-Shalom was obtained from photometric observations by American astronomer Brian Warner.
Lightcurve analysis gave a well-defined rotation period of 19.89 hours with a brightness amplitude of 0.55 magnitude (U=3).

A large number of previous photometric observations gave a period between 19.79 and 19.8201 hours with a brightness amplitude between 0.3 and 0.41 magnitude.
In August 2016, a rotational lightcurve of Ra-Shalom was obtained from photometric observations by American astronomer Brian Warner. Lightcurve analysis gave a well-defined rotation period of 19.89 hours with a brightness amplitude of 0.55 magnitude (U=3).
A large number of previous photometric observations gave a period between 19.79 and 19.8201 hours with a brightness amplitude between 0.3 and 0.41 magnitude.
2100 Ra-Shalom