ASTROSAT CZTI

Data Quality Report

Orbit 31072

Creation date: 2024-06-27T20:23:01.556499
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/AS1C06_002T01_9000004490_31072cztM0_level2.evt modeM0/AS1C06_002T01_9000004490_31072cztM0_level2_quad_clean.evt
Size (bytes)163,753,92036,144,000
Size156.2 MB 34.5 MB
Events in quadrant A867,638246,580
Events in quadrant B1,498,482242,987
Events in quadrant C1,198,261232,955
Events in quadrant D1,264,221233,708

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037860
B057860
C046690
D050150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A189030.158730%
B1890231.216931%
C18901095.767196%
D1890100.529101%

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 1890 1890 0 0 0.00% 0.00%
B 1890 1890 8 8 0.42% 0.42%
C 1890 1890 38 38 2.01% 2.01%
D 1890 1890 7 7 0.37% 0.37%

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 13 254 3940 78.02 224 217 47.7
A 3 137 2154 40.59 224 217 47.7
A 0 226 1879 34.83 224 217 47.7
B 6 159 544059 12158.19 224 218 44.7
B 5 172 35098 779.78 224 218 44.7
B 0 183 19769 437.09 224 218 44.7
C 15 208 260909 4858.59 218 219 53.7
C 0 10 42790 793.41 218 219 53.7
C 14 238 34498 638.87 218 219 53.7
D 8 195 275664 4994.05 223 216 55.2
D 13 174 97390 1761.83 223 216 55.2
D 13 249 13582 242.33 223 216 55.2

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