ASTROSAT CZTI

Data Quality Report

Orbit 31065

Creation date: 2024-06-27T20:22:56.814855
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/AS1C06_002T01_9000004490_31065cztM0_level2.evt modeM0/AS1C06_002T01_9000004490_31065cztM0_level2_quad_clean.evt
Size (bytes)547,462,080112,144,320
Size522.1 MB 106.9 MB
Events in quadrant A3,018,280751,870
Events in quadrant B5,333,068751,654
Events in quadrant C3,419,135747,291
Events in quadrant D4,386,734709,845

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130391
B0202282
C0140491
D0173401

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6247120.192092%
B62471292.064991%
C62471472.353130%
D62471312.097007%

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 7517 6248 0 0 0.00% 0.00%
B 7517 6248 21 21 0.28% 0.34%
C 7517 6248 26 26 0.35% 0.42%
D 7517 6248 90 90 1.20% 1.44%

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 13212 81.27 778 765 153.2
A 15 174 12805 78.61 778 765 153.2
A 3 137 7201 42.02 778 765 153.2
B 6 159 1926009 13472.9 779 760 142.9
B 0 183 179155 1248.41 779 760 142.9
B 4 67 34290 234.64 779 760 142.9
C 0 10 168706 938.76 768 774 178.9
C 14 238 124851 693.6 768 774 178.9
C 3 233 107251 595.22 768 774 178.9
D 8 195 998014 5539.25 758 738 180.0
D 13 249 262157 1452.02 758 738 180.0
D 13 174 77990 429.08 758 738 180.0

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