ASTROSAT CZTI

Data Quality Report

Orbit 04605

Creation date: 2024-06-27T14:44:14.950569
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/AS1G05_167T02_9000000574_04605cztM0_level2.evt modeM0/AS1G05_167T02_9000000574_04605cztM0_level2_quad_clean.evt
Size (bytes)286,718,40043,174,080
Size273.4 MB 41.2 MB
Events in quadrant A2,022,058247,938
Events in quadrant B2,109,807252,221
Events in quadrant C2,084,926249,995
Events in quadrant D2,156,491237,531

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091941
B092381
C092821
D097311

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4541100.220216%
B4541190.418410%
C454170.154151%
D4541210.462453%

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 4541 4541 0 0 0.00% 0.00%
B 4541 4541 0 0 0.00% 0.00%
C 4541 4541 1 1 0.02% 0.02%
D 4541 4541 11 11 0.24% 0.24%

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 3 1 10528 93.72 519 509 106.9
A 15 174 7709 67.35 519 509 106.9
A 13 14 5217 44.04 519 509 106.9
B 15 204 45092 438.87 526 514 101.6
B 0 219 10657 99.86 526 514 101.6
B 12 111 9649 89.93 526 514 101.6
C 14 48 84067 698.62 503 505 119.6
C 9 247 31717 260.95 503 505 119.6
C 13 61 4117 30.2 503 505 119.6
D 13 235 174875 1429.48 498 483 122.0
D 2 136 38594 312.39 498 483 122.0
D 13 239 22804 182.96 498 483 122.0

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