ASTROSAT CZTI

Data Quality Report

Orbit 10154

Creation date: 2024-06-27T15:55:42.199795
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/AS1A03_039T01_9000001462_10154cztM0_level2.evt modeM0/AS1A03_039T01_9000001462_10154cztM0_level2_quad_clean.evt
Size (bytes)1,703,813,760133,617,600
Size1.6 GB 127.4 MB
Events in quadrant A7,282,447895,927
Events in quadrant B6,632,516918,417
Events in quadrant C5,676,401926,483
Events in quadrant D31,142,668414,261

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02620
B02622
C02620
D02620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03045466
B02850861
C02628542
D0102049768

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A128704983.869464%
B128682161.678583%
C128761090.846536%
D128041141689.159638%

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 14686 12897 321 321 2.19% 2.49%
B 14686 12898 36 36 0.25% 0.28%
C 14686 12897 0 0 0.00% 0.00%
D 14685 12821 11181 11181 76.14% 87.21%

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 15 223 801883 2700.21 1463 1431 296.4
A 15 239 492139 1655.34 1463 1431 296.4
A 8 15 169178 565.87 1463 1431 296.4
B 4 81 404431 1413.53 1489 1449 285.1
B 4 239 223468 778.77 1489 1449 285.1
B 0 219 81994 282.53 1489 1449 285.1
C 14 67 32807 94.11 1443 1449 333.2
C 8 128 11786 31.02 1443 1449 333.2
C 13 61 10863 28.25 1443 1449 333.2
D 1 52 26416701 142959.19 776 752 184.8
D 4 95 534786 2890.11 776 752 184.8
D 8 195 404200 2183.4 776 752 184.8

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