ASTROSAT CZTI

Data Quality Report

Orbit 29967

Creation date: 2024-06-27T20:09:18.941699
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/AS1A10_053T06_9000004300_29967cztM0_level2.evt modeM0/AS1A10_053T06_9000004300_29967cztM0_level2_quad_clean.evt
Size (bytes)420,405,12058,409,280
Size400.9 MB 55.7 MB
Events in quadrant A2,146,606382,569
Events in quadrant B3,484,728377,708
Events in quadrant C3,772,635355,324
Events in quadrant D3,040,775354,526

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A089481
B0132151
C0143161
D0117871

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4230841.985816%
B42301483.498818%
C42302415.697400%
D42301914.515366%

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 4665 4231 0 0 0.00% 0.00%
B 4665 4231 2 2 0.04% 0.05%
C 4665 4231 8 8 0.17% 0.19%
D 4665 4231 140 140 3.00% 3.31%

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 12 96 28728 257.13 544 532 109.7
A 8 192 13612 119.28 544 532 109.7
A 13 254 7678 65.17 544 532 109.7
B 6 159 1225525 11716.9 530 516 104.6
B 6 36 149232 1422.43 530 516 104.6
B 12 111 12845 117.92 530 516 104.6
C 3 233 1674297 13766.68 511 513 121.6
C 14 238 86527 707.46 511 513 121.6
C 2 114 10409 81.39 511 513 121.6
D 7 80 786905 6362.44 520 506 123.6
D 7 238 154599 1246.7 520 506 123.6
D 8 195 108665 875.07 520 506 123.6

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