ASTROSAT CZTI

Data Quality Report

Orbit 16062

Creation date: 2024-06-27T17:17:42.802226
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/AS1T02_101T01_9000002372_16062cztM0_level2.evt modeM0/AS1T02_101T01_9000002372_16062cztM0_level2_quad_clean.evt
Size (bytes)216,904,32058,703,040
Size206.9 MB 56.0 MB
Events in quadrant A1,693,631392,253
Events in quadrant B1,463,227398,944
Events in quadrant C1,418,795389,844
Events in quadrant D1,782,620377,972

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069160
B062370
C061920
D073050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3068361.173403%
B306830.097784%
C3068150.488918%
D3068993.226858%

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 3069 3069 33 33 1.08% 1.08%
B 3069 3069 1 1 0.03% 0.03%
C 3069 3069 0 0 0.00% 0.00%
D 3069 3069 119 119 3.88% 3.88%

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 3 80 193672 2604.41 363 356 74.2
A 15 69 95008 1275.18 363 356 74.2
A 9 143 4716 58.74 363 356 74.2
B 4 216 24384 341.32 360 351 70.4
B 0 219 8028 109.03 360 351 70.4
B 12 111 7590 102.81 360 351 70.4
C 14 238 53372 639.74 348 350 82.9
C 3 233 4586 51.11 348 350 82.9
C 0 207 2571 26.8 348 350 82.9
D 1 52 355230 3994.23 355 344 88.8
D 7 38 18754 207.2 355 344 88.8
D 12 218 18438 203.65 355 344 88.8

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