ASTROSAT CZTI

Data Quality Report

Orbit 04232

Creation date: 2024-06-27T14:39:07.582589
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/AS1G05_240T01_9000000536_04232cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04232cztM0_level2_quad_clean.evt
Size (bytes)603,688,32081,901,440
Size575.7 MB 78.1 MB
Events in quadrant A5,492,482474,369
Events in quadrant B4,332,029491,152
Events in quadrant C3,799,537483,192
Events in quadrant D4,109,594468,573

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0219317
B0183692
C0170356
D0179406

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81066337.809030%
B81082583.182042%
C81061331.640760%
D81061411.739452%

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 8488 8111 378 378 4.45% 4.66%
B 8488 8111 31 31 0.37% 0.38%
C 8488 8111 11 11 0.13% 0.14%
D 8488 8111 28 28 0.33% 0.35%

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 0 50 1547307 7960.99 935 911 194.2
A 15 234 162063 829.63 935 911 194.2
A 12 247 129505 662.01 935 911 194.2
B 15 204 235286 1239.1 965 939 189.1
B 14 167 146128 767.68 965 939 189.1
B 4 170 91752 480.17 965 939 189.1
C 7 247 61579 277.54 933 934 218.5
C 10 65 55883 251.47 933 934 218.5
C 9 144 40819 182.53 933 934 218.5
D 11 132 294351 1305.6 926 900 224.8
D 1 52 98153 432.69 926 900 224.8
D 9 85 61164 268.12 926 900 224.8

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