ASTROSAT CZTI

Data Quality Report

Orbit 48312

Creation date: 2024-09-06T13:33:14.988827
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/AS1A13_029T01_9000006422_48312cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48312cztM0_level2_quad_clean.evt
Size (bytes)1,074,142,080239,169,600
Size1.0 GB 228.1 MB
Events in quadrant A15,737,4641,554,241
Events in quadrant B7,240,4171,645,427
Events in quadrant C6,916,9311,584,038
Events in quadrant D8,674,6981,393,736

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08150323843
B04526612983
C04446812600
D05301316172

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440119
B0446126
C0438117
D0426111

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0282
B0292
C0293
D0315

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A152135773.792809%
B154951130.729268%
C15476780.504006%
D154284993.234379%

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 21339 15413 146 146 0.68% 0.95%
B 25902 15809 6 6 0.02% 0.04%
C 25912 15805 20 20 0.08% 0.13%
D 25886 15707 356 356 1.38% 2.27%

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 10 83 8789070 25155.3 1681 1645 349.3
A 13 248 371759 1059.5 1681 1645 349.3
A 0 31 43008 118.41 1681 1645 349.3
B 5 255 116424 334.77 1729 1674 342.8
B 4 21 91557 262.22 1729 1674 342.8
B 12 111 44613 125.27 1729 1674 342.8
C 12 2 152138 374.52 1702 1708 401.7
C 14 254 62103 150.36 1702 1708 401.7
C 1 16 30080 70.64 1702 1708 401.7
D 2 249 730835 1727.69 1686 1634 422.1
D 12 2 639200 1510.58 1686 1634 422.1
D 12 128 452316 1067.79 1686 1634 422.1

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