ASTROSAT CZTI

Data Quality Report

Orbit 42517

Creation date: 2024-06-27T22:41:07.284829
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_9000005806_42517cztM0_level2.fits modeM0/AS1C07_001T10_9000005806_42517cztM0_level2_quad_clean.evt
Size (bytes)301,723,20088,632,000
Size287.7 MB 84.5 MB
Events in quadrant A2,885,752607,636
Events in quadrant B2,471,959614,831
Events in quadrant C2,367,286579,917
Events in quadrant D3,050,181527,459

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115352
B0107592
C0101392
D0125242

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5047160.317020%
B5047260.515158%
C504760.118883%
D50471512.991876%

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 7078 5048 4 4 0.06% 0.08%
B 7078 5048 21 21 0.30% 0.42%
C 7078 5048 0 0 0.00% 0.00%
D 7078 5048 121 121 1.71% 2.40%

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 555103 4775.33 570 559 116.1
A 12 189 75337 643.93 570 559 116.1
A 13 248 21654 181.65 570 559 116.1
B 5 255 170242 1591.36 560 544 106.6
B 0 229 79707 742.36 560 544 106.6
B 5 172 13649 122.89 560 544 106.6
C 15 214 231928 1840.52 544 546 125.7
C 12 249 4003 27.5 544 546 125.7
C 13 61 3725 25.29 544 546 125.7
D 12 233 269191 2028.29 545 528 132.5
D 13 249 220925 1663.9 545 528 132.5
D 12 6 187955 1414.99 545 528 132.5

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