ASTROSAT CZTI

Data Quality Report

Orbit 42342

Creation date: 2024-06-27T22:39:13.014144
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/AS1A12_102T01_9000005798_42342cztM0_level2.fits modeM0/AS1A12_102T01_9000005798_42342cztM0_level2_quad_clean.evt
Size (bytes)207,144,00060,566,400
Size197.5 MB 57.8 MB
Events in quadrant A1,899,724414,768
Events in quadrant B1,683,716415,217
Events in quadrant C1,650,171395,280
Events in quadrant D2,167,959368,073

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A076441
B072401
C069321
D086801

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A340170.205822%
B3401330.970303%
C340120.058806%
D3401411.205528%

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 5345 3402 2 2 0.04% 0.06%
B 5345 3402 18 18 0.34% 0.53%
C 5345 3402 1 1 0.02% 0.03%
D 5345 3402 40 40 0.75% 1.18%

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 365105 4581.35 386 377 79.6
A 13 6 13179 160.81 386 377 79.6
A 13 248 9695 117.04 386 377 79.6
B 5 172 85775 1163.89 382 372 73.4
B 5 32 17839 238.04 382 372 73.4
B 15 35 17780 237.24 382 372 73.4
C 15 214 145301 1632.91 378 381 88.7
C 15 111 17595 193.96 378 381 88.7
C 15 159 12237 133.59 378 381 88.7
D 5 222 177776 1900.25 380 369 93.4
D 1 52 170762 1825.12 380 369 93.4
D 12 0 124979 1334.73 380 369 93.4

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