ASTROSAT CZTI

Data Quality Report

Orbit 07337

Creation date: 2024-06-27T15:18:34.733694
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_178T01_9000001006_07337cztM0_level2.evt modeM0/AS1A02_178T01_9000001006_07337cztM0_level2_quad_clean.evt
Size (bytes)191,468,16029,021,760
Size182.6 MB 27.7 MB
Events in quadrant A1,220,680179,805
Events in quadrant B1,257,397184,106
Events in quadrant C1,186,954177,665
Events in quadrant D1,972,706168,177

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051551
B052331
C050601
D074341

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2341612.605724%
B2341562.392140%
C2341381.623238%
D23411787.603588%

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 3556 2341 4 4 0.11% 0.17%
B 3556 2341 0 0 0.00% 0.00%
C 3556 2341 0 0 0.00% 0.00%
D 3556 2341 106 106 2.98% 4.53%

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 15157 231.13 309 303 64.3
A 15 234 11988 181.82 309 303 64.3
A 0 23 5146 75.36 309 303 64.3
B 0 214 25536 418.42 312 306 60.3
B 4 173 9195 147.42 312 306 60.3
B 0 230 7161 113.68 312 306 60.3
C 9 68 22805 321.15 294 295 70.1
C 8 128 6225 84.6 294 295 70.1
C 1 16 3509 45.85 294 295 70.1
D 12 221 841851 11769.2 286 277 71.5
D 14 34 15562 213.76 286 277 71.5
D 2 14 13922 190.82 286 277 71.5

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