ASTROSAT CZTI

Data Quality Report

Orbit 18354

Creation date: 2024-06-27T17:48:44.858838
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/AS1A06_006T01_9000002720_18354cztM0_level2.evt modeM0/AS1A06_006T01_9000002720_18354cztM0_level2_quad_clean.evt
Size (bytes)472,230,72064,946,880
Size450.4 MB 61.9 MB
Events in quadrant A3,175,425389,294
Events in quadrant B3,461,569392,391
Events in quadrant C3,516,517385,379
Events in quadrant D3,735,979375,612

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127862
B0137171
C0140131
D0147391

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6072661.086957%
B60731312.157089%
C60731492.453483%
D60732584.248312%

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 7372 6073 0 0 0.00% 0.00%
B 7373 6074 23 23 0.31% 0.38%
C 7373 6074 17 17 0.23% 0.28%
D 7373 6074 154 154 2.09% 2.54%

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 15 174 30471 181.66 817 802 163.3
A 0 226 7090 38.5 817 802 163.3
A 12 194 5871 31.04 817 802 163.3
B 7 220 184361 1190.55 821 803 154.2
B 4 216 31551 199.43 821 803 154.2
B 0 244 17060 105.44 821 803 154.2
C 4 254 250901 1368.99 790 799 182.7
C 14 238 122688 667.19 790 799 182.7
C 0 207 32818 175.26 790 799 182.7
D 1 52 603633 3166.05 791 769 190.4
D 7 238 67729 351.65 791 769 190.4
D 11 176 30182 154.47 791 769 190.4

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