ASTROSAT CZTI

Data Quality Report

Orbit 13623

Creation date: 2024-06-27T16:43:35.985097
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/AS1G08_038T01_9000002018_13623cztM0_level2.evt modeM0/AS1G08_038T01_9000002018_13623cztM0_level2_quad_clean.evt
Size (bytes)579,882,24080,308,800
Size553.0 MB 76.6 MB
Events in quadrant A3,454,700462,798
Events in quadrant B4,148,432474,816
Events in quadrant C3,565,858514,382
Events in quadrant D5,906,055479,735

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148703
B0168352
C0149312
D0223442

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71881241.725097%
B71881842.559822%
C7188951.321647%
D71883554.938787%

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 7834 7190 0 0 0.00% 0.00%
B 7834 7190 16 16 0.20% 0.22%
C 7834 7190 1 1 0.01% 0.01%
D 7834 7190 242 242 3.09% 3.37%

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 1 162 19544 103.52 887 867 180.4
A 15 69 12543 64.71 887 867 180.4
A 0 226 8023 39.66 887 867 180.4
B 0 219 510967 3027.88 881 858 168.5
B 3 64 74517 437.22 881 858 168.5
B 0 214 34195 197.88 881 858 168.5
C 3 233 168716 846.0 869 876 198.4
C 13 61 6252 27.1 869 876 198.4
C 14 234 5587 23.75 869 876 198.4
D 5 222 1228303 5929.66 861 837 207.0
D 13 122 768685 3709.33 861 837 207.0
D 8 195 437508 2109.48 861 837 207.0

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