ASTROSAT CZTI

Data Quality Report

Orbit 22362

Creation date: 2024-06-27T18:39:49.342739
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/AS1A07_007T04_9000003310_22362cztM0_level2.evt modeM0/AS1A07_007T04_9000003310_22362cztM0_level2_quad_clean.evt
Size (bytes)436,049,28098,858,880
Size415.8 MB 94.3 MB
Events in quadrant A3,067,099651,474
Events in quadrant B3,194,019670,590
Events in quadrant C3,146,813637,937
Events in quadrant D3,382,563607,262

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129892
B0133192
C0131752
D0142122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A611390.147227%
B6113210.343530%
C6113600.981515%
D6113440.719778%

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 7473 6114 0 0 0.00% 0.00%
B 7473 6114 4 4 0.05% 0.07%
C 7473 6113 0 0 0.00% 0.00%
D 7473 6114 39 39 0.52% 0.64%

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 3 1 27299 170.09 788 775 155.9
A 13 254 8999 52.74 788 775 155.9
A 0 226 6868 39.07 788 775 155.9
B 3 64 47594 321.77 794 776 145.5
B 0 229 18848 124.21 794 776 145.5
B 12 111 16794 110.09 794 776 145.5
C 14 238 123824 688.44 771 778 178.7
C 0 10 12102 63.36 771 778 178.7
C 13 61 5287 25.23 771 778 178.7
D 12 227 196382 1054.59 767 745 185.5
D 1 52 152392 817.46 767 745 185.5
D 2 120 34436 181.61 767 745 185.5

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