ASTROSAT CZTI

Data Quality Report

Orbit 06196

Creation date: 2024-06-27T15:04:00.829454
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_085T02_9000000808_06196cztM0_level2.evt modeM0/AS1A02_085T02_9000000808_06196cztM0_level2_quad_clean.evt
Size (bytes)467,660,160103,737,600
Size446.0 MB 98.9 MB
Events in quadrant A3,106,744677,228
Events in quadrant B3,665,560676,805
Events in quadrant C3,082,909688,040
Events in quadrant D3,877,134657,139

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134823
B0152702
C0135072
D0158132

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6339861.356681%
B63392003.155072%
C6339681.072724%
D63391101.735289%

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 7594 6340 3 3 0.04% 0.05%
B 7594 6340 96 96 1.26% 1.51%
C 7594 6340 0 0 0.00% 0.00%
D 7594 6340 17 17 0.22% 0.27%

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 8 15 88940 568.75 771 753 155.1
A 15 236 31070 195.52 771 753 155.1
A 14 111 7928 46.27 771 753 155.1
B 15 35 268620 1835.19 776 759 146.0
B 3 64 103956 707.03 776 759 146.0
B 15 204 97689 664.09 776 759 146.0
C 1 16 104600 592.37 763 768 175.3
C 13 61 6034 30.04 763 768 175.3
C 3 202 1937 6.67 763 768 175.3
D 2 63 788463 4311.32 757 733 182.7
D 5 97 62046 335.57 757 733 182.7
D 2 14 47569 256.34 757 733 182.7

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