ASTROSAT CZTI

Data Quality Report

Orbit 29255

Creation date: 2024-06-27T20:02:16.684385
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/AS1A10_115T01_9000004206_29255cztM0_level2.evt modeM0/AS1A10_115T01_9000004206_29255cztM0_level2_quad_clean.evt
Size (bytes)334,247,04053,867,520
Size318.8 MB 51.4 MB
Events in quadrant A1,303,847392,803
Events in quadrant B1,661,208391,476
Events in quadrant C4,793,412292,714
Events in quadrant D2,187,508367,903

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053940
B066110
C0160370
D083280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A258610.038670%
B2586491.894818%
C2587153559.335137%
D25871003.865481%

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 2586 2586 0 0 0.00% 0.00%
B 2586 2586 39 39 1.51% 1.51%
C 2587 2587 1162 1162 44.92% 44.92%
D 2587 2587 105 105 4.06% 4.06%

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 0 13 17993 263.14 332 325 67.1
A 13 254 8907 127.82 332 325 67.1
A 0 226 2907 38.45 332 325 67.1
B 10 245 141630 2268.35 323 318 62.3
B 0 183 121116 1939.06 323 318 62.3
B 10 246 57036 910.44 323 318 62.3
C 3 233 3596424 59166.29 258 261 60.8
C 14 238 97923 1606.8 258 261 60.8
C 14 254 83196 1364.5 258 261 60.8
D 1 52 485671 6393.05 316 308 75.9
D 7 80 232211 3054.56 316 308 75.9
D 12 79 142463 1872.42 316 308 75.9

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