ASTROSAT CZTI

Data Quality Report

Orbit 33410

Creation date: 2024-06-27T20:48:31.541241
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_001T03_9000004790_33410cztM0_level2.evt modeM0/AS1C07_001T03_9000004790_33410cztM0_level2_quad_clean.evt
Size (bytes)415,840,32085,210,560
Size396.6 MB 81.3 MB
Events in quadrant A2,310,955589,914
Events in quadrant B3,557,043573,319
Events in quadrant C2,593,552551,426
Events in quadrant D3,798,124520,738

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098823
B0137502
C0105532
D0145622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A492040.081301%
B49203226.544715%
C4920350.711382%
D49201082.195122%

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 7072 4921 0 0 0.00% 0.00%
B 7072 4921 261 261 3.69% 5.30%
C 7072 4921 30 30 0.42% 0.61%
D 7072 4921 102 102 1.44% 2.07%

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 13 6 10429 84.42 594 586 116.6
A 13 254 8570 68.48 594 586 116.6
A 3 137 5429 41.54 594 586 116.6
B 5 172 831169 7664.31 571 556 108.4
B 5 255 178194 1639.12 571 556 108.4
B 0 213 108988 1000.53 571 556 108.4
C 15 214 215153 1691.11 556 560 126.9
C 0 10 158490 1244.58 556 560 126.9
C 14 254 32643 252.83 556 560 126.9
D 8 195 738262 5530.64 558 543 133.4
D 2 250 253064 1893.14 558 543 133.4
D 2 249 162272 1212.47 558 543 133.4

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