ASTROSAT CZTI

Data Quality Report

Orbit 41043

Creation date: 2024-06-27T22:23:38.310285
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/AS1A12_029T02_9000005590_41043cztM0_level2.fits modeM0/AS1A12_029T02_9000005590_41043cztM0_level2_quad_clean.evt
Size (bytes)296,038,08088,698,240
Size282.3 MB 84.6 MB
Events in quadrant A2,745,498592,943
Events in quadrant B2,268,988606,652
Events in quadrant C2,863,062581,716
Events in quadrant D2,669,100534,792

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114673
B0105922
C0118652
D0117542

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5278120.227359%
B527840.075786%
C5278971.837817%
D5278811.534672%

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 7100 5279 3 3 0.04% 0.06%
B 7100 5279 0 0 0.00% 0.00%
C 7100 5279 85 85 1.20% 1.61%
D 7100 5279 63 63 0.89% 1.19%

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 10 83 495581 4210.39 572 560 117.6
A 12 189 14152 115.61 572 560 117.6
A 13 254 9817 78.74 572 560 117.6
B 12 111 14125 121.84 572 556 111.4
B 11 111 12960 111.38 572 556 111.4
B 14 111 12883 110.69 572 556 111.4
C 14 254 281960 2137.46 562 566 131.6
C 15 214 225608 1709.41 562 566 131.6
C 0 10 120976 914.63 562 566 131.6
D 13 249 185773 1375.87 559 544 134.6
D 12 0 144340 1068.11 559 544 134.6
D 13 171 124964 924.18 559 544 134.6

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