ASTROSAT CZTI

Data Quality Report

Orbit 43715

Creation date: 2024-06-27T22:54:55.395510
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_43715cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43715cztM0_level2_quad_clean.evt
Size (bytes)793,036,80099,434,880
Size756.3 MB 94.8 MB
Events in quadrant A9,647,366704,739
Events in quadrant B3,425,182753,908
Events in quadrant C9,474,757472,430
Events in quadrant D6,275,857599,398

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0335151
B0148991
C0327521
D0236241

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68905668.214804%
B68901181.712627%
C6891268638.978378%
D689183612.131766%

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 7720 6891 299 299 3.87% 4.34%
B 7720 6891 38 38 0.49% 0.55%
C 7721 6887 1894 1894 24.53% 27.50%
D 7721 6892 664 664 8.60% 9.63%

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 4632092 29654.51 752 736 156.2
A 10 83 879072 5623.97 752 736 156.2
A 15 223 706112 4516.51 752 736 156.2
B 5 235 245146 1597.85 770 745 153.0
B 0 199 83272 539.55 770 745 153.0
B 12 111 19356 121.68 770 745 153.0
C 15 157 6656849 47248.93 596 599 140.9
C 3 233 192826 1364.51 596 599 140.9
C 15 158 134795 952.58 596 599 140.9
D 12 233 1082598 5890.21 714 691 183.7
D 7 80 452773 2461.26 714 691 183.7
D 13 171 262537 1425.56 714 691 183.7

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