ASTROSAT CZTI

Data Quality Report

Orbit 32690

Creation date: 2024-06-27T20:40:52.885037
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/AS1T04_063T01_9000004724_32690cztM0_level2.evt modeM0/AS1T04_063T01_9000004724_32690cztM0_level2_quad_clean.evt
Size (bytes)590,103,36074,004,480
Size562.8 MB 70.6 MB
Events in quadrant A3,214,149481,676
Events in quadrant B3,207,234486,537
Events in quadrant C3,345,297470,098
Events in quadrant D7,706,334390,755

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132703
B0133052
C0137212
D0270352

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5884260.441876%
B5884480.815772%
C58841432.430320%
D5884134222.807614%

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 7196 5885 5 5 0.07% 0.08%
B 7196 5885 20 20 0.28% 0.34%
C 7196 5885 107 107 1.49% 1.82%
D 7196 5885 1210 1210 16.81% 20.56%

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 15 249 488017 3558.86 683 670 136.9
A 0 253 30416 217.22 683 670 136.9
A 13 6 14484 100.88 683 670 136.9
B 0 219 183413 1383.58 692 678 132.1
B 3 26 114027 858.22 692 678 132.1
B 0 199 66572 498.92 692 678 132.1
C 9 236 328789 2131.22 661 666 154.0
C 0 10 238770 1546.53 661 666 154.0
C 3 233 101861 657.28 661 666 154.0
D 12 3 956036 6678.03 608 596 143.1
D 12 2 646704 4515.96 608 596 143.1
D 8 195 524374 3660.94 608 596 143.1

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