ASTROSAT CZTI

Data Quality Report

Orbit 06363

Creation date: 2024-06-27T15:06:11.611065
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A02_124T01_9000000842_06363cztM0_level2.evt modeM0/AS1A02_124T01_9000000842_06363cztM0_level2_quad_clean.evt
Size (bytes)954,584,640174,044,160
Size910.4 MB 166.0 MB
Events in quadrant A6,323,4241,109,381
Events in quadrant B7,287,2471,119,992
Events in quadrant C7,362,9781,079,503
Events in quadrant D7,050,4661,057,501

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0275434
B0299113
C0309753
D0301793

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02680
B02680
C02680
D02680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13095300.229095%
B13095820.626193%
C130953872.955326%
D130951611.229477%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 15490 13098 2 2 0.01% 0.02%
B 15490 13098 2 2 0.01% 0.02%
C 15490 13098 364 364 2.35% 2.78%
D 15490 13098 132 132 0.85% 1.01%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 236 466968 1540.98 1489 1457 302.1
A 13 251 64397 208.35 1489 1457 302.1
A 8 15 40727 130.0 1489 1457 302.1
B 0 228 1206814 4196.44 1506 1466 287.2
B 0 229 70003 238.61 1506 1466 287.2
B 15 204 65095 221.53 1506 1466 287.2
C 4 254 1717088 5138.98 1441 1446 333.8
C 9 16 12424 32.88 1441 1446 333.8
C 13 61 11499 30.11 1441 1446 333.8
D 2 63 954851 2689.33 1446 1401 354.5
D 2 152 253385 710.75 1446 1401 354.5
D 11 241 115021 320.48 1446 1401 354.5

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter