ASTROSAT CZTI

Data Quality Report

Orbit 33071

Creation date: 2024-06-27T20:44:39.042223
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/AS1A11_007T07_9000004758_33071cztM0_level2.evt modeM0/AS1A11_007T07_9000004758_33071cztM0_level2_quad_clean.evt
Size (bytes)754,911,36074,998,080
Size719.9 MB 71.5 MB
Events in quadrant A2,700,875540,341
Events in quadrant B3,459,154534,116
Events in quadrant C4,440,885509,279
Events in quadrant D11,872,223282,520

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116333
B0137412
C0169082
D0392742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A575860.104203%
B57581532.657173%
C57584888.475165%
D5758363863.181660%

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 8953 5760 0 0 0.00% 0.00%
B 8953 5760 99 99 1.11% 1.72%
C 8953 5760 369 369 4.12% 6.41%
D 8953 5760 3541 3541 39.55% 61.48%

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 11012 74.01 695 681 139.6
A 3 137 6516 41.8 695 681 139.6
A 0 226 5931 37.61 695 681 139.6
B 5 172 465708 3529.55 684 664 131.8
B 0 245 110888 836.57 684 664 131.8
B 0 189 68213 512.67 684 664 131.8
C 8 111 1271126 8447.17 649 655 150.4
C 7 221 327442 2172.76 649 655 150.4
C 0 10 198328 1314.3 649 655 150.4
D 7 223 8502056 64942.45 494 483 130.9
D 12 218 469391 3581.93 494 483 130.9
D 8 195 255256 1946.18 494 483 130.9

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