ASTROSAT CZTI

Data Quality Report

Orbit 22815

Creation date: 2024-06-27T18:46:09.908751
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/AS1C05_012T02_9000003372_22815cztM0_level2.evt modeM0/AS1C05_012T02_9000003372_22815cztM0_level2_quad_clean.evt
Size (bytes)164,436,48047,522,880
Size156.8 MB 45.3 MB
Events in quadrant A1,193,424323,704
Events in quadrant B1,236,417325,187
Events in quadrant C1,174,442308,241
Events in quadrant D1,208,870307,765

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050321
B051511
C050131
D051341

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2419612.521703%
B2419652.687061%
C2419743.059115%
D2419582.397685%

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 3144 2420 0 0 0.00% 0.00%
B 3144 2420 0 0 0.00% 0.00%
C 3144 2420 0 0 0.00% 0.00%
D 3144 2420 3 3 0.10% 0.12%

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 13 254 4053 58.98 308 301 63.6
A 0 226 2801 39.3 308 301 63.6
A 3 137 2597 36.09 308 301 63.6
B 0 190 35081 581.29 303 295 59.8
B 12 111 6975 111.62 303 295 59.8
B 11 111 6298 100.31 303 295 59.8
C 14 238 45607 667.5 288 289 67.9
C 13 61 2084 26.44 288 289 67.9
C 0 239 1705 20.86 288 289 67.9
D 8 195 34321 463.04 296 286 73.5
D 7 238 20723 278.04 296 286 73.5
D 9 85 19168 256.89 296 286 73.5

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