ASTROSAT CZTI

Data Quality Report

Orbit 29057

Creation date: 2024-06-27T19:59:46.320836
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/AS1C05_019T04_9000004162_29057cztM0_level2.evt modeM0/AS1C05_019T04_9000004162_29057cztM0_level2_quad_clean.evt
Size (bytes)496,252,800117,005,760
Size473.3 MB 111.6 MB
Events in quadrant A3,217,635767,848
Events in quadrant B3,325,836785,790
Events in quadrant C3,368,395760,258
Events in quadrant D4,630,182730,586

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145781
B0147861
C0147101
D0187571

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7167771.074369%
B7167811.130180%
C7167961.339473%
D71671992.776615%

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 7472 7167 0 0 0.00% 0.00%
B 7472 7167 7 7 0.09% 0.10%
C 7472 7168 1 1 0.01% 0.01%
D 7472 7167 109 109 1.46% 1.52%

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 13 254 12519 69.56 832 812 168.3
A 3 137 8322 44.62 832 812 168.3
A 1 113 8101 43.31 832 812 168.3
B 10 245 44994 276.77 827 804 159.7
B 15 33 22680 137.01 827 804 159.7
B 12 111 19987 120.15 827 804 159.7
C 14 238 132474 702.41 800 804 187.5
C 3 233 82041 433.37 800 804 187.5
C 2 114 16917 85.96 800 804 187.5
D 1 52 1009343 5281.28 798 774 191.0
D 8 195 535330 2799.15 798 774 191.0
D 2 250 34338 175.75 798 774 191.0

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