ASTROSAT CZTI

Data Quality Report

Orbit 43643

Creation date: 2024-06-27T22:54:00.403930
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_068T05_9000005894_43643cztM0_level2.fits modeM0/AS1A12_068T05_9000005894_43643cztM0_level2_quad_clean.evt
Size (bytes)863,389,44093,142,080
Size823.4 MB 88.8 MB
Events in quadrant A5,610,259669,865
Events in quadrant B3,434,563715,207
Events in quadrant C15,198,898398,465
Events in quadrant D7,216,569582,815

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209551
B0147072
C0495371
D0259351

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A645377912.071905%
B64521201.859888%
C6453511179.203471%
D6453114517.743685%

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 7343 6453 639 639 8.70% 9.90%
B 7342 6452 48 48 0.65% 0.74%
C 7342 6452 5213 5213 71.00% 80.80%
D 7343 6453 838 838 11.41% 12.99%

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 15 223 1865018 13310.43 681 668 140.1
A 10 83 760354 5423.74 681 668 140.1
A 13 248 112432 797.93 681 668 140.1
B 12 32 228450 1657.31 705 683 137.4
B 5 235 173761 1259.38 705 683 137.4
B 0 219 89285 644.7 705 683 137.4
C 15 142 9807544 100927.77 411 414 97.2
C 3 233 971706 9995.82 411 414 97.2
C 15 157 829987 8537.36 411 414 97.2
D 4 221 1049412 6187.46 652 630 169.5
D 13 249 571504 3367.97 652 630 169.5
D 7 80 495581 2920.05 652 630 169.5

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