ASTROSAT CZTI

Data Quality Report

Orbit 06169

Creation date: 2024-06-27T15:03:43.338124
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/AS1G06_139T05_9000000804_06169cztM0_level2.evt modeM0/AS1G06_139T05_9000000804_06169cztM0_level2_quad_clean.evt
Size (bytes)316,212,48056,304,000
Size301.6 MB 53.7 MB
Events in quadrant A2,611,839348,381
Events in quadrant B2,223,813358,167
Events in quadrant C2,022,100352,464
Events in quadrant D2,416,865334,395

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106292
B094761
C090381
D0103551

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4420781.764706%
B4420370.837104%
C442070.158371%
D4420871.968326%

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 4955 4421 21 21 0.42% 0.48%
B 4955 4421 5 5 0.10% 0.11%
C 4955 4421 0 0 0.00% 0.00%
D 4955 4421 73 73 1.47% 1.65%

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 8 15 501456 4592.89 525 512 109.1
A 4 2 79342 722.75 525 512 109.1
A 0 254 6231 52.43 525 512 109.1
B 0 219 62926 595.78 533 519 104.7
B 3 64 31730 297.96 533 519 104.7
B 0 214 27691 259.4 533 519 104.7
C 12 16 22446 182.5 511 512 120.2
C 1 16 4004 29.06 511 512 120.2
C 13 61 3991 28.95 511 512 120.2
D 2 206 273274 2157.27 505 487 126.5
D 13 169 144596 1139.65 505 487 126.5
D 5 97 30810 239.8 505 487 126.5

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