ASTROSAT CZTI

Data Quality Report

Orbit 01379

Creation date: 2024-06-27T14:11:47.992132
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/AS1G04_014T02_9000000232_01379cztM0_level2.evt modeM0/AS1G04_014T02_9000000232_01379cztM0_level2_quad_clean.evt
Size (bytes)1,340,061,120102,761,280
Size1.2 GB 98.0 MB
Events in quadrant A10,908,163662,227
Events in quadrant B9,654,266697,655
Events in quadrant C8,558,596680,907
Events in quadrant D10,990,296572,142

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0375201
B0337440
C0304660
D0380250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71605697.946927%
B7160350.488827%
C716030.041899%
D7160144820.223464%

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 7160 7160 1302 1302 18.18% 18.18%
B 7160 7160 632 632 8.83% 8.83%
C 7160 7160 366 366 5.11% 5.11%
D 7160 7160 1927 1927 26.91% 26.91%

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 15 127 2114271 3931.76 2214 2228 537.2
A 4 32 147835 271.06 2214 2228 537.2
A 15 233 141375 259.03 2214 2228 537.2
B 8 4 346535 607.86 2361 2379 566.2
B 12 52 114229 197.55 2361 2379 566.2
B 6 53 99992 172.41 2361 2379 566.2
C 15 241 245422 412.71 2105 2176 589.4
C 3 79 28203 44.16 2105 2176 589.4
C 12 4 27696 43.3 2105 2176 589.4
D 13 73 4130405 7218.58 1821 1888 571.9
D 9 53 44389 74.31 1821 1888 571.9
D 2 170 12707 18.92 1821 1888 571.9

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