ASTROSAT CZTI

Data Quality Report

Orbit 07592

Creation date: 2024-06-27T15:21:23.984042
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_024T01_9000001044_07592cztM0_level2.evt modeM0/AS1A02_024T01_9000001044_07592cztM0_level2_quad_clean.evt
Size (bytes)121,818,24020,151,360
Size116.2 MB 19.2 MB
Events in quadrant A622,236136,666
Events in quadrant B605,384139,680
Events in quadrant C1,716,261117,792
Events in quadrant D668,107131,848

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A025751
B025211
C058641
D027771

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1096666.021898%
B1096777.025547%
C109646842.700730%
D1096464.197080%

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 1416 1097 0 0 0.00% 0.00%
B 1416 1097 0 0 0.00% 0.00%
C 1416 1097 313 313 22.10% 28.53%
D 1416 1097 9 9 0.64% 0.82%

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 15 239 38957 1132.58 151 147 34.3
A 0 226 1473 38.7 151 147 34.3
A 12 194 1299 33.62 151 147 34.3
B 12 111 3451 98.17 155 151 33.6
B 11 111 2674 75.05 155 151 33.6
B 0 214 2365 65.86 155 151 33.6
C 9 68 1198088 35672.96 132 133 33.6
C 13 61 1025 26.56 132 133 33.6
C 8 128 669 15.96 132 133 33.6
D 5 233 62995 1612.38 147 142 39.0
D 2 14 35913 917.64 147 142 39.0
D 2 152 8970 226.47 147 142 39.0

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