ASTROSAT CZTI

Data Quality Report

Orbit 08047

Creation date: 2024-06-27T15:27:14.736107
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/AS1G05_246T02_9000001106_08047cztM0_level2.evt modeM0/AS1G05_246T02_9000001106_08047cztM0_level2_quad_clean.evt
Size (bytes)3,483,069,120632,831,040
Size3.2 GB 603.5 MB
Events in quadrant A25,137,4713,985,125
Events in quadrant B25,369,3654,065,440
Events in quadrant C23,246,1813,982,653
Events in quadrant D28,429,3003,775,938

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01081958
B01078166
C01034486
D01195966

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09860
B09860
C09860
D09860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0450
B0450
C0450
D0450

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4894112772.609264%
B4894113692.797246%
C4894110112.065753%
D4894125205.149057%

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 66985 48949 262 262 0.39% 0.54%
B 66985 48949 265 265 0.40% 0.54%
C 66985 48949 189 189 0.28% 0.39%
D 66985 48949 1563 1563 2.33% 3.19%

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 4 2 2513954 2146.5 5757 5630 1168.6
A 0 128 224562 187.35 5757 5630 1168.6
A 15 79 222096 185.24 5757 5630 1168.6
B 4 239 1287289 1170.37 5800 5660 1095.1
B 10 16 354930 318.95 5800 5660 1095.1
B 11 51 340401 305.68 5800 5660 1095.1
C 4 254 992458 756.4 5643 5665 1304.6
C 1 16 211084 157.46 5643 5665 1304.6
C 13 61 42908 28.55 5643 5665 1304.6
D 13 169 4642656 3260.05 5481 5348 1422.5
D 1 52 2036753 1428.09 5481 5348 1422.5
D 12 233 280661 193.55 5481 5348 1422.5

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