ASTROSAT CZTI

Data Quality Report

Orbit 11318

Creation date: 2024-06-27T16:11:13.501608
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/AS1A04_137T01_9000001654_11318cztM0_level2.evt modeM0/AS1A04_137T01_9000001654_11318cztM0_level2_quad_clean.evt
Size (bytes)181,958,40041,633,280
Size173.5 MB 39.7 MB
Events in quadrant A1,312,309284,362
Events in quadrant B1,554,657280,765
Events in quadrant C1,313,439282,391
Events in quadrant D1,199,129274,303

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052201
B058961
C050921
D047941

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1900331.736842%
B19001397.315789%
C19001135.947368%
D1901331.735928%

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 1900 1900 13 13 0.68% 0.68%
B 1900 1900 88 88 4.63% 4.63%
C 1900 1900 95 95 5.00% 5.00%
D 1901 1901 20 20 1.05% 1.05%

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 5 137138 2544.97 256 251 53.8
A 0 8 58218 1077.71 256 251 53.8
A 8 15 55928 1035.13 256 251 53.8
B 4 239 268392 5645.64 247 242 47.5
B 3 64 200091 4207.63 247 242 47.5
B 15 204 43555 911.91 247 242 47.5
C 9 204 367364 6454.0 242 245 56.9
C 13 61 1733 26.16 242 245 56.9
C 12 4 998 13.24 242 245 56.9
D 7 80 77167 1277.44 249 243 60.2
D 1 52 65453 1082.91 249 243 60.2
D 2 120 52176 862.43 249 243 60.2

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