ASTROSAT CZTI

Data Quality Report

Orbit 08034

Creation date: 2024-06-27T15:27:08.607086
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/AS1A02_080T01_9000001104_08034cztM0_level2.evt modeM0/AS1A02_080T01_9000001104_08034cztM0_level2_quad_clean.evt
Size (bytes)416,476,80090,835,200
Size397.2 MB 86.6 MB
Events in quadrant A2,681,158604,335
Events in quadrant B3,127,570617,314
Events in quadrant C2,509,430594,303
Events in quadrant D3,927,816557,034

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115811
B0129531
C0111161
D0153921

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5398681.259726%
B53981943.593924%
C5398150.277881%
D53982093.871804%

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 6663 5399 23 23 0.35% 0.43%
B 6663 5399 65 65 0.98% 1.20%
C 6663 5399 0 0 0.00% 0.00%
D 6663 5399 87 87 1.31% 1.61%

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 155358 1166.11 652 640 132.7
A 15 234 8405 58.52 652 640 132.7
A 0 226 6304 42.69 652 640 132.7
B 4 239 321205 2584.82 659 644 124.0
B 10 16 70325 561.87 659 644 124.0
B 11 51 48425 385.28 659 644 124.0
C 1 16 13467 87.03 639 641 147.4
C 13 61 4971 29.38 639 641 147.4
C 8 222 3159 17.08 639 641 147.4
D 13 169 1386011 9074.69 625 606 152.7
D 2 136 62891 407.98 625 606 152.7
D 1 52 44573 287.99 625 606 152.7

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