ASTROSAT CZTI

Data Quality Report

Orbit 05865

Creation date: 2024-06-27T15:00:11.660499
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/AS1G06_033T01_9000000760_05865cztM0_level2.evt modeM0/AS1G06_033T01_9000000760_05865cztM0_level2_quad_clean.evt
Size (bytes)533,712,96077,699,520
Size509.0 MB 74.1 MB
Events in quadrant A2,998,987492,810
Events in quadrant B3,126,481493,391
Events in quadrant C2,943,081493,590
Events in quadrant D6,655,464421,600

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01335732
B01355145
C01329421
D02395744

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64601532.368421%
B64531442.231520%
C6465610.943542%
D6458144422.359864%

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 6920 6475 5 5 0.07% 0.08%
B 6920 6472 3 3 0.04% 0.05%
C 6920 6476 0 0 0.00% 0.00%
D 6920 6476 1254 1254 18.12% 19.36%

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 15 234 15718 94.25 770 752 158.8
A 15 174 12403 73.38 770 752 158.8
A 15 236 8441 48.42 770 752 158.8
B 15 204 57497 373.93 774 756 151.7
B 0 219 36006 232.3 774 756 151.7
B 12 111 13991 87.22 774 756 151.7
C 8 128 11322 60.53 746 749 174.7
C 1 16 9582 50.57 746 749 174.7
C 8 112 6288 31.71 746 749 174.7
D 1 20 3571532 22770.81 635 614 156.8
D 2 14 206297 1311.59 635 614 156.8
D 2 63 184034 1169.62 635 614 156.8

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