ASTROSAT CZTI

Data Quality Report

Orbit 41304

Creation date: 2024-06-27T22:27:16.677695
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/AS1T05_106T01_9000005642_41304cztM0_level2.fits modeM0/AS1T05_106T01_9000005642_41304cztM0_level2_quad_clean.evt
Size (bytes)351,792,00087,638,400
Size335.5 MB 83.6 MB
Events in quadrant A3,114,913584,013
Events in quadrant B2,597,592608,197
Events in quadrant C3,103,921563,272
Events in quadrant D3,787,108522,223

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124143
B0115622
C0125812
D0149532

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5375761.413953%
B5375150.279070%
C53752524.688372%
D53752364.390698%

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 7108 5376 62 62 0.87% 1.15%
B 7108 5376 1 1 0.01% 0.02%
C 7108 5376 244 244 3.43% 4.54%
D 7108 5376 241 241 3.39% 4.48%

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 515157 4299.43 579 567 119.7
A 6 10 173455 1444.49 579 567 119.7
A 12 189 91589 760.49 579 567 119.7
B 0 186 238572 2134.8 579 562 111.5
B 0 245 37811 334.1 579 562 111.5
B 0 229 21175 184.89 579 562 111.5
C 0 10 697721 5459.83 550 553 127.7
C 15 214 227162 1774.67 550 553 127.7
C 10 70 18599 141.33 550 553 127.7
D 2 249 576857 4263.93 557 540 135.2
D 5 222 463079 3422.14 557 540 135.2
D 13 249 239316 1766.61 557 540 135.2

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