ASTROSAT CZTI

Data Quality Report

Orbit 13316

Creation date: 2024-06-27T16:39:20.738455
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/AS1A04_196T04_9000001982_13316cztM0_level2.evt modeM0/AS1A04_196T04_9000001982_13316cztM0_level2_quad_clean.evt
Size (bytes)232,159,68051,304,320
Size221.4 MB 48.9 MB
Events in quadrant A1,746,808329,844
Events in quadrant B1,760,064342,075
Events in quadrant C1,658,880338,064
Events in quadrant D1,649,264319,076

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072502
B072171
C069251
D069201

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3150240.761905%
B3150240.761905%
C3150130.412698%
D3150160.507937%

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 4566 3152 0 0 0.00% 0.00%
B 4566 3152 0 0 0.00% 0.00%
C 4566 3152 3 3 0.07% 0.10%
D 4566 3152 2 2 0.04% 0.06%

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 8 15 117442 1369.87 418 410 85.4
A 1 162 6585 72.27 418 410 85.4
A 15 69 6104 66.64 418 410 85.4
B 0 244 92682 1143.17 420 410 80.7
B 0 214 11974 143.27 420 410 80.7
B 12 111 9142 108.18 420 410 80.7
C 6 96 39188 407.3 410 413 95.2
C 14 234 17276 177.13 410 413 95.2
C 13 61 2910 26.23 410 413 95.2
D 8 195 52374 527.26 407 397 98.6
D 14 35 25891 258.62 407 397 98.6
D 5 222 11179 109.37 407 397 98.6

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