ASTROSAT CZTI

Data Quality Report

Orbit 14301

Creation date: 2024-06-27T16:53:08.781781
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/AS1A04_231T01_9000002106_14301cztM0_level2.evt modeM0/AS1A04_231T01_9000002106_14301cztM0_level2_quad_clean.evt
Size (bytes)200,208,96034,557,120
Size190.9 MB 33.0 MB
Events in quadrant A1,391,795211,659
Events in quadrant B1,510,675218,222
Events in quadrant C1,557,240218,180
Events in quadrant D1,422,808209,288

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056621
B060961
C063561
D057841

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2626100.380807%
B2626271.028180%
C2626130.495050%
D262670.266565%

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 2627 2627 0 0 0.00% 0.00%
B 2627 2627 3 3 0.11% 0.11%
C 2627 2627 0 0 0.00% 0.00%
D 2627 2627 1 1 0.04% 0.04%

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 12 189 20035 274.91 353 346 71.6
A 8 15 15210 207.54 353 346 71.6
A 0 226 3217 40.09 353 346 71.6
B 0 229 104102 1571.56 349 341 66.0
B 0 189 34533 517.87 349 341 66.0
B 12 111 7002 100.89 349 341 66.0
C 3 233 200240 2540.35 347 349 78.7
C 13 61 2526 27.67 347 349 78.7
C 3 203 814 5.91 347 349 78.7
D 5 222 68448 824.96 346 339 82.6
D 1 52 16759 198.88 346 339 82.6
D 10 70 11397 133.94 346 339 82.6

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