RXJ0643.9-2052 recent (cont'd) YYYYMMDD(UT) mag observer 20000929.756 <144 (R. Stubbings) 20001003.717 <140 (R. Stubbings) 20001004.737 <148 (R. Stubbings) 20001007.826 <140 (A. Pearce) 20001008.724 <140 (R. Stubbings) 20001016.812 <132 (A. Pearce) 20001017.821 <133 (A. Pearce) 20001018.803 <135 (A. Pearce) 20001021.769 <140 (A. Pearce) 20001022.808 <140 (A. Pearce) 20001023.790 <140 (A. Pearce) 20001024.787 <140 (A. Pearce) 20001025.808 <140 (A. Pearce) 20001027.646 <144 (R. Stubbings) 20001027.788 <140 (A. Pearce)