ASTROSAT CZTI

Data Quality Report

Orbit 30055

Creation date: 2024-06-27T20:10:19.814327
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/AS1A10_071T09_9000004320_30055cztM0_level2.evt modeM0/AS1A10_071T09_9000004320_30055cztM0_level2_quad_clean.evt
Size (bytes)126,696,96032,474,880
Size120.8 MB 31.0 MB
Events in quadrant A803,828220,470
Events in quadrant B1,226,187219,480
Events in quadrant C832,356209,891
Events in quadrant D856,187208,097

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034270
B050640
C034720
D035240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A170310.058720%
B170360.352319%
C170390.528479%
D170340.234880%

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 1703 1703 0 0 0.00% 0.00%
B 1703 1703 0 0 0.00% 0.00%
C 1703 1703 0 0 0.00% 0.00%
D 1703 1703 4 4 0.23% 0.23%

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 13 254 2871 59.99 208 204 44.5
A 3 137 2100 42.64 208 204 44.5
A 0 226 1749 34.75 208 204 44.5
B 6 159 421333 10258.53 203 197 41.1
B 12 111 4940 115.54 203 197 41.1
B 11 111 4572 106.57 203 197 41.1
C 14 238 32518 670.16 198 199 48.2
C 3 233 20164 413.99 198 199 48.2
C 2 114 3838 75.46 198 199 48.2
D 8 195 39450 795.44 203 199 49.3
D 13 249 15114 302.26 203 199 49.3
D 1 52 13417 267.87 203 199 49.3

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