ASTROSAT CZTI

Data Quality Report

Orbit 29748

Creation date: 2024-06-27T20:07:23.960730
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_007T01_9000004276_29748cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29748cztM0_level2_quad_clean.evt
Size (bytes)560,666,880101,689,920
Size534.7 MB 97.0 MB
Events in quadrant A3,151,967669,360
Events in quadrant B5,310,183679,861
Events in quadrant C3,835,205653,414
Events in quadrant D4,253,407634,473

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132361
B0199621
C0152731
D0168861

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6343350.551789%
B63441562.459016%
C63442103.310214%
D63431171.844553%

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 7418 6343 0 0 0.00% 0.00%
B 7419 6344 8 8 0.11% 0.13%
C 7419 6345 96 96 1.29% 1.51%
D 7418 6343 65 65 0.88% 1.02%

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 12063 69.12 814 800 162.9
A 12 16 11311 64.51 814 800 162.9
A 3 137 7948 43.87 814 800 162.9
B 6 159 1900668 12366.01 811 791 153.6
B 0 229 146892 950.95 811 791 153.6
B 0 190 29228 185.09 811 791 153.6
C 10 22 360031 1940.32 786 792 185.1
C 3 233 225819 1215.41 786 792 185.1
C 14 238 126068 676.64 786 792 185.1
D 8 195 1022247 5491.62 785 767 186.0
D 2 250 128258 685.41 785 767 186.0
D 13 153 92657 494.01 785 767 186.0

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