ASTROSAT CZTI

Data Quality Report

Orbit 07222

Creation date: 2024-06-27T15:17:06.268178
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/AS1A02_111T01_9000000986_07222cztM0_level2.evt modeM0/AS1A02_111T01_9000000986_07222cztM0_level2_quad_clean.evt
Size (bytes)358,960,32077,952,960
Size342.3 MB 74.3 MB
Events in quadrant A2,469,450499,214
Events in quadrant B2,628,281521,986
Events in quadrant C2,582,197509,024
Events in quadrant D2,842,612471,472

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107542
B0112602
C0111312
D0119352

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5121280.546768%
B5121450.878735%
C5121200.390549%
D5121901.757469%

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 6451 5122 0 0 0.00% 0.00%
B 6451 5122 3 3 0.05% 0.06%
C 6451 5122 2 2 0.03% 0.04%
D 6451 5122 75 75 1.16% 1.46%

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 63248 498.1 618 604 125.8
A 3 1 11895 89.78 618 604 125.8
A 14 111 9474 70.53 618 604 125.8
B 0 214 64488 536.99 632 618 118.9
B 4 81 49115 407.74 632 618 118.9
B 0 228 43143 357.53 632 618 118.9
C 9 68 172902 1204.99 616 620 143.0
C 10 22 6626 42.01 616 620 143.0
C 13 61 4594 27.8 616 620 143.0
D 2 33 179286 1216.34 601 581 146.9
D 2 216 161746 1096.95 601 581 146.9
D 2 63 110508 748.21 601 581 146.9

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