ASTROSAT CZTI

Data Quality Report

Orbit 23868

Creation date: 2024-06-27T18:59:39.175157
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/AS1C05_002T07_9000003536_23868cztM0_level2.evt modeM0/AS1C05_002T07_9000003536_23868cztM0_level2_quad_clean.evt
Size (bytes)223,306,56038,448,000
Size213.0 MB 36.7 MB
Events in quadrant A1,500,440248,389
Events in quadrant B1,577,611253,723
Events in quadrant C1,689,895239,142
Events in quadrant D1,817,094236,533

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062371
B065121
C068941
D073301

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2593843.239491%
B25931013.895102%
C25931515.823371%
D2593923.548014%

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 3948 2594 0 0 0.00% 0.00%
B 3948 2594 0 0 0.00% 0.00%
C 3948 2594 12 12 0.30% 0.46%
D 3948 2594 4 4 0.10% 0.15%

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 4015 45.87 389 381 79.2
A 0 226 3618 40.86 389 381 79.2
A 3 137 3236 36.04 389 381 79.2
B 0 189 69132 919.52 385 377 74.8
B 12 111 8421 107.58 385 377 74.8
B 11 111 7309 92.71 385 377 74.8
C 7 247 137429 1565.33 368 371 87.6
C 14 238 59544 675.81 368 371 87.6
C 0 10 52801 598.8 368 371 87.6
D 8 195 292251 3136.67 381 369 93.1
D 9 35 49235 525.13 381 369 93.1
D 1 52 19456 205.11 381 369 93.1

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