ASTROSAT CZTI

Data Quality Report

Orbit 03595

Creation date: 2024-06-27T14:31:25.851404
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/AS1G05_246T04_9000000472_03595cztM0_level2.evt modeM0/AS1G05_246T04_9000000472_03595cztM0_level2_quad_clean.evt
Size (bytes)1,056,602,880154,169,280
Size1007.7 MB 147.0 MB
Events in quadrant A6,522,435944,478
Events in quadrant B7,657,735943,527
Events in quadrant C10,670,796898,049
Events in quadrant D6,207,815921,805

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0295115
B0324734
C0413914
D0292934

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02820
B02820
C02820
D02820

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A139091641.179093%
B139092271.632037%
C1390912508.986987%
D13910670.481668%

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 14294 13913 55 55 0.38% 0.40%
B 14294 13913 14 14 0.10% 0.10%
C 14294 13913 876 876 6.13% 6.30%
D 14295 13914 25 25 0.17% 0.18%

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 0 50 347697 1080.35 1568 1528 320.4
A 3 1 71591 218.66 1568 1528 320.4
A 8 15 30545 90.56 1568 1528 320.4
B 15 204 1072544 3447.97 1595 1551 310.6
B 4 81 232191 742.53 1595 1551 310.6
B 0 244 41713 129.3 1595 1551 310.6
C 2 53 4398452 12669.32 1492 1497 347.1
C 9 247 341600 979.97 1492 1497 347.1
C 1 16 31114 85.34 1492 1497 347.1
D 1 84 88909 234.34 1534 1485 373.1
D 13 239 79436 208.95 1534 1485 373.1
D 13 223 78966 207.69 1534 1485 373.1

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