We introduce pinta, a pipeline for reducing the upgraded Giant Metre-wave Radio Telescope (uGMRT) raw pulsar timing data, developed for the Indian Pulsar Timing Array experiment. We provide a detailed description of the workflow and usage of pinta, as well as its computational performance and RFI mitigation characteristics. We also discuss a novel and independent determination of the relative time offsets between the different back-end modes of uGMRT and the interpretation of the uGMRT observation frequency settings and their agreement with results obtained from engineering tests. Further, we demonstrate the capability of pinta to generate data products which can produce high-precision TOAs using PSR J1909 $-$ 3744 as an example. These results are crucial for performing precision pulsar timing with the uGMRT.

中文翻译：

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pinta：印度脉冲星时序阵列的 uGMRT 数据处理管道

我们介绍品塔，用于减少升级后的巨型米波射电望远镜 (uGMRT) 原始脉冲星计时数据的管道，为印度脉冲星计时阵列实验开发。我们提供了工作流程和使用的详细描述品塔，以及它的计算性能和 RFI 缓解特性。我们还讨论了 uGMRT 不同后端模式之间相对时间偏移的新颖且独立的确定，以及 uGMRT 观测频率设置的解释及其与工程测试结果的一致性。此外，我们展示了品塔使用 PSR J1909 生成可以产生高精度 TOA 的数据产品 $-$ 以 3744 为例。这些结果对于使用 uGMRT 执行精确的脉冲星计时至关重要。