ASTROSAT CZTI

Data Quality Report

Orbit 07323

Creation date: 2024-06-27T15:18:39.381678
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/AS1G06_164T01_9000001004_07323cztM0_level2.evt modeM0/AS1G06_164T01_9000001004_07323cztM0_level2_quad_clean.evt
Size (bytes)1,372,475,520288,048,960
Size1.3 GB 274.7 MB
Events in quadrant A10,297,8581,842,958
Events in quadrant B10,068,8121,851,479
Events in quadrant C9,203,6461,815,340
Events in quadrant D10,548,2881,742,464

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04340
B04340
C04340
D04340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0456424
B0444234
C0431684
D0465664

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A213814762.226276%
B213812901.356344%
C213811830.855900%
D213812621.225387%

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 22786 21382 107 107 0.47% 0.50%
B 22786 21383 17 17 0.07% 0.08%
C 22786 21383 0 0 0.00% 0.00%
D 22786 21383 55 55 0.24% 0.26%

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 8 15 476870 985.68 2389 2334 481.4
A 15 234 447833 925.37 2389 2334 481.4
A 13 248 83641 168.89 2389 2334 481.4
B 0 214 298462 652.65 2411 2352 453.7
B 11 51 285544 624.18 2411 2352 453.7
B 4 81 80546 172.35 2411 2352 453.7
C 9 68 63289 113.34 2335 2342 537.8
C 13 61 17935 29.0 2335 2342 537.8
C 8 128 14344 22.32 2335 2342 537.8
D 2 216 696758 1236.3 2321 2246 561.8
D 1 20 677558 1202.12 2321 2246 561.8
D 12 233 145511 255.02 2321 2246 561.8

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