ASTROSAT CZTI

Data Quality Report

Orbit 24623

Creation date: 2024-06-27T19:08:02.148862
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/AS1T03_189T01_9000003614_24623cztM0_level2.evt modeM0/AS1T03_189T01_9000003614_24623cztM0_level2_quad_clean.evt
Size (bytes)496,198,080114,652,800
Size473.2 MB 109.3 MB
Events in quadrant A3,284,348775,164
Events in quadrant B4,051,143769,494
Events in quadrant C3,416,626750,954
Events in quadrant D3,847,485736,973

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136961
B0162131
C0141151
D0156371

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63031111.761066%
B63032113.347612%
C63041672.649112%
D63031722.728859%

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 7528 6303 0 0 0.00% 0.00%
B 7528 6303 49 49 0.65% 0.78%
C 7529 6304 0 0 0.00% 0.00%
D 7528 6304 92 92 1.22% 1.46%

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 9548 51.95 850 833 167.8
A 3 137 7460 39.5 850 833 167.8
A 0 226 7330 38.73 850 833 167.8
B 3 64 709702 4534.55 834 816 156.3
B 0 190 64033 404.38 834 816 156.3
B 12 111 18552 113.45 834 816 156.3
C 14 238 132152 689.39 823 832 190.5
C 7 247 38324 196.82 823 832 190.5
C 3 233 20412 102.79 823 832 190.5
D 1 52 535278 2660.42 837 815 200.9
D 8 195 120892 597.71 837 815 200.9
D 2 234 25495 122.85 837 815 200.9

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