ASTROSAT CZTI

Data Quality Report

Orbit 22856

Creation date: 2024-06-27T18:46:39.016362
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_054T01_9000003378_22856cztM0_level2.evt modeM0/AS1A07_054T01_9000003378_22856cztM0_level2_quad_clean.evt
Size (bytes)438,546,240130,132,800
Size418.2 MB 124.1 MB
Events in quadrant A3,041,041912,158
Events in quadrant B3,041,373914,671
Events in quadrant C2,975,816847,246
Events in quadrant D3,808,711841,713

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125781
B0125781
C0125341
D0152961

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6099590.967372%
B6099761.246106%
C6099881.442859%
D61001181.934426%

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 7394 6100 0 0 0.00% 0.00%
B 7394 6100 0 0 0.00% 0.00%
C 7394 6100 0 0 0.00% 0.00%
D 7395 6101 78 78 1.05% 1.28%

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 13 252 19766 122.66 782 770 154.9
A 13 254 9817 58.42 782 770 154.9
A 11 47 9799 58.3 782 770 154.9
B 12 111 16419 109.66 769 753 142.9
B 11 111 14377 95.36 769 753 142.9
B 14 111 12555 82.61 769 753 142.9
C 14 238 120194 719.47 726 730 166.0
C 10 22 12022 68.01 726 730 166.0
C 0 239 6662 35.73 726 730 166.0
D 7 238 638015 3529.26 746 724 180.6
D 13 153 134981 743.5 746 724 180.6
D 1 52 121387 668.22 746 724 180.6

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