ASTROSAT CZTI

Data Quality Report

Orbit 12383

Creation date: 2024-06-27T16:26:28.163379
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/AS1A04_104T02_9000001838_12383cztM0_level2.evt modeM0/AS1A04_104T02_9000001838_12383cztM0_level2_quad_clean.evt
Size (bytes)443,183,04065,214,720
Size422.7 MB 62.2 MB
Events in quadrant A2,478,695472,769
Events in quadrant B6,263,057314,839
Events in quadrant C1,764,733472,633
Events in quadrant D2,650,491438,785

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100722
B0211651
C078851
D0105431

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3889701.799949%
B3889205652.867061%
C3889110.282849%
D38892546.531242%

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 4475 3891 0 0 0.00% 0.00%
B 4475 3891 1950 1950 43.58% 50.12%
C 4475 3890 0 0 0.00% 0.00%
D 4475 3890 195 195 4.36% 5.01%

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 13 251 267961 2748.99 466 456 97.3
A 1 162 147807 1514.24 466 456 97.3
A 1 178 80238 819.87 466 456 97.3
B 2 32 3000986 47003.88 329 321 63.8
B 2 48 1453178 22758.26 329 321 63.8
B 4 239 368525 5767.73 329 321 63.8
C 15 208 7854 70.03 449 449 105.7
C 13 61 3307 27.03 449 449 105.7
C 12 4 2204 16.6 449 449 105.7
D 1 52 786723 7433.44 437 424 105.8
D 8 195 105565 993.97 437 424 105.8
D 13 104 57328 537.95 437 424 105.8

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