ASTROSAT CZTI

Data Quality Report

Orbit 45932

Creation date: 2024-06-27T23:17:51.853893
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/AS1A13_033T03_9000006144_45932cztM0_level2.fits modeM0/AS1A13_033T03_9000006144_45932cztM0_level2_quad_clean.evt
Size (bytes)1,340,058,240215,524,800
Size1.2 GB 205.5 MB
Events in quadrant A12,302,2261,456,420
Events in quadrant B13,193,0741,377,368
Events in quadrant C7,155,8121,464,589
Events in quadrant D15,862,9771,249,024

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0459933
B0489603
C0314143
D0570303

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02900
B02900
C02900
D02900

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A141504763.363958%
B14150185713.123675%
C141503652.579505%
D14150164511.625442%

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 15715 14150 20 20 0.13% 0.14%
B 15715 14150 1235 1235 7.86% 8.73%
C 15715 14151 187 187 1.19% 1.32%
D 15715 14150 1370 1370 8.72% 9.68%

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 10 83 6012096 18001.55 1599 1565 333.9
A 2 79 34328 98.13 1599 1565 333.9
A 0 247 32107 91.47 1599 1565 333.9
B 3 112 7056430 23541.18 1517 1465 299.7
B 12 111 38581 123.85 1517 1465 299.7
B 0 183 36970 118.47 1517 1465 299.7
C 14 254 810536 2176.76 1575 1581 371.6
C 12 249 146870 390.95 1575 1581 371.6
C 12 2 21279 53.0 1575 1581 371.6
D 1 52 6308352 16267.19 1531 1483 387.7
D 11 241 2499817 6443.91 1531 1483 387.7
D 5 171 258188 662.11 1531 1483 387.7

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