ASTROSAT CZTI

Data Quality Report

Orbit 43722

Creation date: 2024-06-27T22:55:00.592259
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_003T01_9000005902_43722cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43722cztM0_level2_quad_clean.evt
Size (bytes)692,153,280100,488,960
Size660.1 MB 95.8 MB
Events in quadrant A5,791,045731,275
Events in quadrant B4,258,987753,485
Events in quadrant C9,717,195470,539
Events in quadrant D5,353,824637,244

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0218511
B0170091
C0332801
D0202712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64573114.816478%
B64583555.497058%
C6458263740.833075%
D64574937.635125%

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 7447 6459 88 88 1.18% 1.36%
B 7448 6460 154 154 2.07% 2.38%
C 7448 6460 2120 2120 28.46% 32.82%
D 7447 6459 339 339 4.55% 5.25%

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 15 222 1260829 8096.05 760 746 155.6
A 10 83 803397 5157.04 760 746 155.6
A 14 63 383542 2459.47 760 746 155.6
B 5 235 565135 3815.25 754 731 147.9
B 4 171 407286 2748.23 754 731 147.9
B 0 199 176624 1189.0 754 731 147.9
C 15 157 4489772 31711.25 602 604 141.6
C 15 174 1860244 13136.4 602 604 141.6
C 3 233 670392 4731.35 602 604 141.6
D 5 235 624780 3334.86 735 714 187.1
D 13 171 624379 3332.71 735 714 187.1
D 1 52 176724 940.55 735 714 187.1

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