ASTROSAT CZTI

Data Quality Report

Orbit 04647

Creation date: 2024-06-27T14:45:03.364735
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/AS1G05_218T03_9000000582_04647cztM0_level2.evt modeM0/AS1G05_218T03_9000000582_04647cztM0_level2_quad_clean.evt
Size (bytes)412,891,20077,103,360
Size393.8 MB 73.5 MB
Events in quadrant A2,861,824480,367
Events in quadrant B2,997,133494,697
Events in quadrant C2,774,810473,254
Events in quadrant D3,440,536445,163

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130483
B0132032
C0129382
D0148352

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6317130.205794%
B6317270.427418%
C631780.126642%
D6317620.981479%

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 7617 6318 1 1 0.01% 0.02%
B 7617 6318 0 0 0.00% 0.00%
C 7617 6318 0 0 0.00% 0.00%
D 7617 6318 39 39 0.51% 0.62%

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 14 111 43976 293.53 730 716 147.4
A 12 194 7201 44.0 730 716 147.4
A 0 226 7101 43.32 730 716 147.4
B 15 204 59047 411.82 746 731 141.6
B 12 111 12803 85.25 746 731 141.6
B 4 80 11796 78.14 746 731 141.6
C 13 61 5962 31.89 709 712 164.6
C 1 16 2242 9.29 709 712 164.6
C 14 15 2067 8.23 709 712 164.6
D 8 112 374740 2238.22 695 675 167.1
D 13 235 205518 1225.68 695 675 167.1
D 2 63 109436 650.77 695 675 167.1

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