ASTROSAT CZTI

Data Quality Report

Orbit 09996

Creation date: 2024-06-27T15:53:39.290381
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/AS1G07_005T01_9000001430_09996cztM0_level2.evt modeM0/AS1G07_005T01_9000001430_09996cztM0_level2_quad_clean.evt
Size (bytes)81,912,96012,936,960
Size78.1 MB 12.3 MB
Events in quadrant A596,51075,700
Events in quadrant B602,66271,381
Events in quadrant C615,26581,845
Events in quadrant D579,50270,211

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177
B0189
C0177
D0178

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02443521830
B02606623522
C02339020661
D02862126173

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231202
B0234197
C0229201
D0236210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1205322.655602%
B1180383.220339%
C1322241.815431%
D1100343.090909%

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 12444 1938 0 0 0.00% 0.00%
B 12376 1921 0 0 0.00% 0.00%
C 12414 2093 0 0 0.00% 0.00%
D 12852 1767 1 1 0.01% 0.06%

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 8 15 32894 1015.98 145 142 32.2
A 0 226 1345 37.32 145 142 32.2
A 12 194 1198 32.76 145 142 32.2
B 4 239 25146 824.06 144 140 30.3
B 0 219 5074 162.6 144 140 30.3
B 12 111 3097 97.45 144 140 30.3
C 13 61 1156 26.02 157 158 38.4
C 8 222 692 13.92 157 158 38.4
C 14 67 617 11.97 157 158 38.4
D 1 52 32595 914.79 130 127 35.5
D 8 195 21418 599.87 130 127 35.5
D 12 233 12289 342.66 130 127 35.5

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