ASTROSAT CZTI

Data Quality Report

Orbit 05966

Creation date: 2024-06-27T15:01:18.511787
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_086T01_9000000774_05966cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_05966cztM0_level2_quad_clean.evt
Size (bytes)418,582,080113,284,800
Size399.2 MB 108.0 MB
Events in quadrant A2,861,914756,989
Events in quadrant B2,988,682774,672
Events in quadrant C3,576,709736,185
Events in quadrant D2,810,265713,113

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014412
B01439
C014410
D014414

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143891191
B0146161212
C0168001617
D0153351928

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6469791.221209%
B64631211.872196%
C64232073.222793%
D6409550.858168%

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 7700 6642 0 0 0.00% 0.00%
B 7700 6633 1 1 0.01% 0.02%
C 7700 6613 114 114 1.48% 1.72%
D 7700 6610 12 12 0.16% 0.18%

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 8 192 21622 141.69 726 707 147.6
A 13 251 20693 135.4 726 707 147.6
A 13 14 9175 57.37 726 707 147.6
B 0 219 45944 319.6 737 717 141.5
B 15 204 40792 283.19 737 717 141.5
B 4 81 34535 238.97 737 717 141.5
C 9 247 816342 5079.57 693 695 160.6
C 1 16 26058 157.95 693 695 160.6
C 9 68 12795 75.35 693 695 160.6
D 2 206 66163 386.67 694 671 169.4
D 2 63 35401 205.05 694 671 169.4
D 8 195 26541 152.74 694 671 169.4

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