ASTROSAT CZTI

Data Quality Report

Orbit 32904

Creation date: 2024-06-27T20:43:17.816570
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_005T01_9000004748_32904cztM0_level2.evt modeM0/AS1C07_005T01_9000004748_32904cztM0_level2_quad_clean.evt
Size (bytes)546,600,96094,354,560
Size521.3 MB 90.0 MB
Events in quadrant A2,447,545645,757
Events in quadrant B3,342,023652,943
Events in quadrant C2,834,688652,710
Events in quadrant D7,582,485546,270

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104243
B0132522
C0114012
D0261432

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A512960.116982%
B51292174.230844%
C5129500.974849%
D5129123824.137259%

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 7223 5130 0 0 0.00% 0.00%
B 7223 5130 129 129 1.79% 2.51%
C 7223 5130 35 35 0.48% 0.68%
D 7223 5130 1186 1186 16.42% 23.12%

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 63 33890 273.59 616 605 121.7
A 13 6 12347 96.52 616 605 121.7
A 0 159 10304 79.72 616 605 121.7
B 5 172 598412 5231.56 612 598 114.3
B 0 219 207083 1806.98 612 598 114.3
B 0 229 33064 284.11 612 598 114.3
C 0 10 208695 1490.67 610 615 139.6
C 14 67 145895 1040.78 610 615 139.6
C 1 241 32206 226.31 610 615 139.6
D 8 195 3188151 21969.25 559 549 145.1
D 12 227 1119049 7708.81 559 549 145.1
D 10 203 511501 3521.53 559 549 145.1

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