ASTROSAT CZTI

Data Quality Report

Orbit 23576

Creation date: 2024-06-27T18:56:19.651383
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/AS1A07_011T01_9000003482_23576cztM0_level2.evt modeM0/AS1A07_011T01_9000003482_23576cztM0_level2_quad_clean.evt
Size (bytes)251,078,40056,321,280
Size239.4 MB 53.7 MB
Events in quadrant A1,735,417367,527
Events in quadrant B1,900,713379,580
Events in quadrant C1,856,579356,292
Events in quadrant D1,868,437350,646

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142
B0142
C0142
D0164

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08612
B08612
C08711
D08612

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08391992
B090001074
C088971166
D091501156

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3545140.394922%
B3544381.072235%
C35411032.908783%
D3540250.706215%

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 7544 3563 0 0 0.00% 0.00%
B 6583 3555 7 7 0.11% 0.20%
C 5967 3556 41 41 0.69% 1.15%
D 7546 3554 3 3 0.04% 0.08%

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 6 16 7908 81.72 448 439 91.4
A 13 254 6136 62.33 448 439 91.4
A 3 137 3880 37.65 448 439 91.4
B 0 189 52203 608.28 444 433 85.1
B 0 230 38403 446.14 444 433 85.1
B 4 216 29370 340.0 444 433 85.1
C 0 10 131489 1315.45 422 425 99.6
C 14 238 66166 659.82 422 425 99.6
C 1 16 5248 48.41 422 425 99.6
D 1 52 124460 1175.6 433 420 105.5
D 9 85 35024 327.96 433 420 105.5
D 7 223 32763 306.53 433 420 105.5

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