ASTROSAT CZTI

Data Quality Report

Orbit 43386

Creation date: 2024-06-27T22:51:20.310385
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/AS1C07_001T10_9000005872_43386cztM0_level2.fits modeM0/AS1C07_001T10_9000005872_43386cztM0_level2_quad_clean.evt
Size (bytes)303,649,92088,188,480
Size289.6 MB 84.1 MB
Events in quadrant A3,045,992582,500
Events in quadrant B2,287,130617,090
Events in quadrant C2,683,519588,118
Events in quadrant D2,827,680527,036

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122402
B0103622
C0110992
D0121745

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50761092.147360%
B5076120.236407%
C507670.137904%
D50751422.798030%

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 7079 5077 89 89 1.26% 1.75%
B 7079 5077 3 3 0.04% 0.06%
C 7079 5077 0 0 0.00% 0.00%
D 7078 5076 127 127 1.79% 2.50%

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 543398 4843.91 548 539 112.1
A 15 237 335502 2988.86 548 539 112.1
A 13 6 17280 149.38 548 539 112.1
B 0 189 37802 349.78 559 543 106.5
B 0 245 24505 224.95 559 543 106.5
B 5 172 19691 179.76 559 543 106.5
C 3 233 264562 2086.05 549 553 126.6
C 15 214 208811 1645.54 549 553 126.6
C 15 111 34093 265.01 549 553 126.6
D 12 218 199750 1526.57 536 521 130.5
D 13 249 164251 1254.56 536 521 130.5
D 12 6 135730 1036.02 536 521 130.5

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