ASTROSAT CZTI

Data Quality Report

Orbit 19105

Creation date: 2024-06-27T17:59:05.950529
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/AS1T03_098T01_9000002836_19105cztM0_level2.evt modeM0/AS1T03_098T01_9000002836_19105cztM0_level2_quad_clean.evt
Size (bytes)497,309,76091,431,360
Size474.3 MB 87.2 MB
Events in quadrant A3,191,072586,659
Events in quadrant B3,416,943600,021
Events in quadrant C3,303,599590,386
Events in quadrant D4,733,390563,586

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134971
B0142481
C0139061
D0185401

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6136480.782269%
B6136681.108214%
C61361001.629726%
D61374006.517843%

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 7421 6137 0 0 0.00% 0.00%
B 7421 6137 11 11 0.15% 0.18%
C 7421 6137 1 1 0.01% 0.02%
D 7422 6138 260 260 3.50% 4.24%

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 4 2 44238 266.82 814 799 162.8
A 0 226 6913 37.55 814 799 162.8
A 8 192 6788 36.79 814 799 162.8
B 3 112 100737 655.68 819 801 152.4
B 7 220 46646 300.79 819 801 152.4
B 0 197 20347 128.24 819 801 152.4
C 14 238 125061 670.98 801 810 185.2
C 3 233 49335 262.05 801 810 185.2
C 0 207 9546 47.18 801 810 185.2
D 11 176 597368 3136.84 786 764 190.2
D 1 52 393634 2065.64 786 764 190.2
D 7 38 376131 1973.61 786 764 190.2

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