Epoch parameter in Group description lacks of decimals

[mrkite92]

Example:
Group 1: 12 fields at 05:23:13.51 -69:45:39.3 with radius 48.36'
instruments epoch center coordinates radius scale
lm00106l0250.mef.cat A1 P1 1996.9 05:23:12.61 -69:45:43.6 48.11' 0.6024"
lm00106l0444.mef.cat A1 P1 1996.9 05:23:12.56 -69:45:41.2 48.11' 0.6024"
lm00106l0665.mef.cat A1 P1 1996.9 05:23:11.71 -69:45:39.3 48.11' 0.6024"
lm00106l0841.mef.cat A1 P1 1996.9 05:23:12.63 -69:45:36.1 48.11' 0.6024"
lm00106l1018.mef.cat A1 P1 1996.9 05:23:11.21 -69:45:48.0 48.11' 0.6024"
lm00106l1236.mef.cat A1 P1 1996.9 05:23:12.66 -69:45:44.0 48.11' 0.6024"
lm00106l1443.mef.cat A1 P1 1997.0 05:23:15.04 -69:45:36.0 48.11' 0.6024"
lm00106l1693.mef.cat A1 P1 1997.0 05:23:13.36 -69:45:42.5 48.11' 0.6023"
lm00106l1818.mef.cat A1 P1 1997.0 05:23:16.08 -69:45:33.7 48.11' 0.6024"
lm00106l2048.mef.cat A1 P1 1997.0 05:23:13.19 -69:45:34.0 48.11' 0.6024"
lm00106l2452.mef.cat A1 P1 1997.0 05:23:16.01 -69:45:38.3 48.11' 0.6024"
lm00106l2932.mef.cat A1 P1 1997.0 05:23:15.12 -69:45:34.4 48.11' 0.6024"

All these catalogs are from images of 1996, the last one from 29 December 1996. But at some stage the rounding of Epoch yields 1997.0, which is confusing. Some more decimals should be useful.