ASTROSAT CZTI

Data Quality Report

Orbit 04095

Creation date: 2024-06-27T14:37:17.738179
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_192T01_9000000522_04095cztM0_level2.evt modeM0/AS1G05_192T01_9000000522_04095cztM0_level2_quad_clean.evt
Size (bytes)730,157,76080,208,000
Size696.3 MB 76.5 MB
Events in quadrant A3,034,112556,686
Events in quadrant B3,548,165560,097
Events in quadrant C12,181,084360,053
Events in quadrant D2,947,085535,535

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130782
B0143741
C0402251
D0127791

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5939701.178650%
B59391973.317057%
C5939463778.077117%
D5939500.841893%

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 7204 5939 12 12 0.17% 0.20%
B 7204 5939 70 70 0.97% 1.18%
C 7203 5938 4517 4517 62.71% 76.07%
D 7204 5939 10 10 0.14% 0.17%

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 0 199 168450 1121.35 726 711 149.6
A 0 50 44221 290.87 726 711 149.6
A 0 226 23305 151.04 726 711 149.6
B 10 16 397661 2875.72 732 716 138.0
B 14 167 112371 808.9 732 716 138.0
B 3 0 109905 791.03 732 716 138.0
C 12 204 10209494 90213.69 492 494 113.2
C 14 234 39944 348.6 492 494 113.2
C 12 4 5154 41.17 492 494 113.2
D 10 172 98091 572.63 711 691 170.1
D 13 53 48384 280.39 711 691 170.1
D 2 37 30546 175.52 711 691 170.1

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