ASTROSAT CZTI

Data Quality Report

Orbit 07376

Creation date: 2024-06-27T15:19:05.095610
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/AS1G06_151T02_9000001010_07376cztM0_level2.evt modeM0/AS1G06_151T02_9000001010_07376cztM0_level2_quad_clean.evt
Size (bytes)212,829,12044,127,360
Size203.0 MB 42.1 MB
Events in quadrant A2,091,752276,582
Events in quadrant B1,343,569291,710
Events in quadrant C1,416,657289,696
Events in quadrant D1,399,745276,146

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08613435
B06311449
C06470420
D06663494

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0624
B0613
C0624
D0635

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A28271645.801203%
B2823873.081828%
C2827652.299257%
D2818923.264727%

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 4924 2865 43 43 0.87% 1.50%
B 4926 2868 1 1 0.02% 0.03%
C 4927 2867 0 0 0.00% 0.00%
D 4927 2856 12 12 0.24% 0.42%

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 15 234 726614 10301.78 337 328 70.5
A 15 239 56382 795.08 337 328 70.5
A 14 111 6134 82.35 337 328 70.5
B 12 111 7125 98.64 343 334 68.8
B 11 111 5716 78.17 343 334 68.8
B 4 81 5235 71.19 343 334 68.8
C 9 68 88720 1123.57 332 332 78.7
C 8 229 29050 365.06 332 332 78.7
C 13 61 2569 28.44 332 332 78.7
D 13 137 77292 943.37 327 316 81.6
D 14 34 19464 234.67 327 316 81.6
D 2 216 17416 209.57 327 316 81.6

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